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25222056 = 2331995281
BaseRepresentation
bin110000000110…
…1101110101000
31202110102011020
41200031232220
522424101211
62300332440
7424245456
oct140155650
952412136
1025222056
1113267782
128544120
1352c12c2
1434c79d6
152333306
hex180dba8

25222056 has 32 divisors (see below), whose sum is σ = 63384000. Its totient is φ = 8363520.

The previous prime is 25222051. The next prime is 25222061. The reversal of 25222056 is 65022252.

It is an interprime number because it is at equal distance from previous prime (25222051) and next prime (25222061).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25222051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2136 + ... + 7416.

It is an arithmetic number, because the mean of its divisors is an integer number (1980750).

Almost surely, 225222056 is an apocalyptic number.

It is an amenable number.

25222056 is an abundant number, since it is smaller than the sum of its proper divisors (38161944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25222056 is a wasteful number, since it uses less digits than its factorization.

25222056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489 (or 5485 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25222056 is about 5022.1565089113. The cubic root of 25222056 is about 293.2649507723.

The spelling of 25222056 in words is "twenty-five million, two hundred twenty-two thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 199 398 597 796 1194 1592 2388 4776 5281 10562 15843 21124 31686 42248 63372 126744 1050919 2101838 3152757 4203676 6305514 8407352 12611028 25222056