25415632 has 20 divisors (see below), whose sum is σ = 53719776. Its totient is φ = 11552480.

The previous prime is 25415627. The next prime is 25415651. The reversal of 25415632 is 23651452.

It is a self number, because there is not a number n which added to its sum of digits gives 25415632.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 72028 + ... + 72379.

Almost surely, 2^25415632 is an apocalyptic number.

25415632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25415632 is an abundant number, since it is smaller than the sum of its proper divisors (28304144).

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

25415632 is a wasteful number, since it uses less digits than its factorization.

25415632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144426 (or 144420 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 25415632 is about 5041.3918712990. The cubic root of 25415632 is about 294.0132963274.

The spelling of 25415632 in words is "twenty-five million, four hundred fifteen thousand, six hundred thirty-two".