25640152 has 24 divisors (see below), whose sum is σ = 48697740. Its totient is φ = 12656000.

The previous prime is 25640081. The next prime is 25640171. The reversal of 25640152 is 25104652.

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 5 ways as a sum of consecutive naturals, for example, 102027 + ... + 102277.

Almost surely, 2^25640152 is an apocalyptic number.

It is an amenable number.

25640152 is a deficient number, since it is larger than the sum of its proper divisors (23057588).

25640152 is a wasteful number, since it uses less digits than its factorization.

25640152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25640152 is about 5063.6105695442. The cubic root of 25640152 is about 294.8765240214.

The spelling of 25640152 in words is "twenty-five million, six hundred forty thousand, one hundred fifty-two".