25039432 has 16 divisors (see below), whose sum is σ = 51217200. Its totient is φ = 11381520.

The previous prime is 25039429. The next prime is 25039439. The reversal of 25039432 is 23493052.

It is a self number, because there is not a number n which added to its sum of digits gives 25039432.

It is not an unprimeable number, because it can be changed into a prime (25039439) 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 3 ways as a sum of consecutive naturals, for example, 142182 + ... + 142357.

It is an arithmetic number, because the mean of its divisors is an integer number (3201075).

Almost surely, 2^25039432 is an apocalyptic number.

25039432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25039432 is an abundant number, since it is smaller than the sum of its proper divisors (26177768).

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

25039432 is a wasteful number, since it uses less digits than its factorization.

25039432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284556 (or 284552 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 25039432 is about 5003.9416463424. The cubic root of 25039432 is about 292.5554262219. Note that the first 3 decimals are identical.

It can be divided in two parts, 2503 and 9432, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 25039432 in words is "twenty-five million, thirty-nine thousand, four hundred thirty-two".