25632534 has 32 divisors (see below), whose sum is σ = 54120960. Its totient is φ = 8076992.

The previous prime is 25632533. The next prime is 25632553. The reversal of 25632534 is 43523652.

It is a super-2 number, since 2×25632534² = 1314053598522312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25632533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11239 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (1691280).

Almost surely, 2^25632534 is an apocalyptic number.

25632534 is an abundant number, since it is smaller than the sum of its proper divisors (28488426).

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

25632534 is a wasteful number, since it uses less digits than its factorization.

25632534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204.

The product of its digits is 21600, while the sum is 30.

The square root of 25632534 is about 5062.8582836181. The cubic root of 25632534 is about 294.8473173320.

The spelling of 25632534 in words is "twenty-five million, six hundred thirty-two thousand, five hundred thirty-four".