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22223125 = 5431237
BaseRepresentation
bin101010011000…
…1100100010101
31112211001101201
41110301210111
521142120000
62112152501
7356615311
oct124614425
945731351
1022223125
11115a9621
127538731
1347b12a2
142d46b41
151e3e96a
hex1531915

22223125 has 30 divisors (see below), whose sum is σ = 29470254. Its totient is φ = 16740000.

The previous prime is 22223119. The next prime is 22223137. The reversal of 22223125 is 52132222.

It can be written as a sum of positive squares in 5 ways, for example, as 4186116 + 18037009 = 2046^2 + 4247^2 .

It is not a de Polignac number, because 22223125 - 27 = 22222997 is a prime.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 600607 + ... + 600643.

Almost surely, 222223125 is an apocalyptic number.

22223125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22223125 is a deficient number, since it is larger than the sum of its proper divisors (7247129).

22223125 is an frugal number, since it uses more digits than its factorization.

22223125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 73 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 22223125 is about 4714.1409609811. The cubic root of 22223125 is about 281.1480288770.

Adding to 22223125 its reverse (52132222), we get a palindrome (74355347).

The spelling of 22223125 in words is "twenty-two million, two hundred twenty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 31 37 125 155 185 625 775 925 961 1147 3875 4625 4805 5735 19375 23125 24025 28675 35557 120125 143375 177785 600625 716875 888925 4444625 22223125