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22542525 = 3252100189
BaseRepresentation
bin101010111111…
…1100010111101
31120102021112100
41111333202331
521232330100
62123055313
7362415435
oct125774275
946367470
1022542525
11117a7595
127671539
134893795
142dcb2c5
151ea4400
hex157f8bd

22542525 has 18 divisors (see below), whose sum is σ = 40376570. Its totient is φ = 12022560.

The previous prime is 22542479. The next prime is 22542539. The reversal of 22542525 is 52524522.

It can be written as a sum of positive squares in 3 ways, for example, as 131769 + 22410756 = 363^2 + 4734^2 .

It is not a de Polignac number, because 22542525 - 27 = 22542397 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49870 + ... + 50319.

Almost surely, 222542525 is an apocalyptic number.

22542525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22542525 is a deficient number, since it is larger than the sum of its proper divisors (17834045).

22542525 is a wasteful number, since it uses less digits than its factorization.

22542525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100205 (or 100197 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 22542525 is about 4747.8969028402. The cubic root of 22542525 is about 282.4885525421.

It can be divided in two parts, 225 and 42525, that multiplied together give a triangular number (9568125 = T4374).

The spelling of 22542525 in words is "twenty-two million, five hundred forty-two thousand, five hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 100189 300567 500945 901701 1502835 2504725 4508505 7514175 22542525