25264690 has 48 divisors (see below), whose sum is σ = 51477120. Its totient is φ = 8853600.

The previous prime is 25264663. The next prime is 25264691. The reversal of 25264690 is 9646252.

It is a super-2 number, since 2×25264690² = 1276609121592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25264691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105591 + ... + 105829.

It is an arithmetic number, because the mean of its divisors is an integer number (1072440).

Almost surely, 2^25264690 is an apocalyptic number.

25264690 is an abundant number, since it is smaller than the sum of its proper divisors (26212430).

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

25264690 is a wasteful number, since it uses less digits than its factorization.

25264690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 25264690 is about 5026.3993076555. The cubic root of 25264690 is about 293.4300974953.

The spelling of 25264690 in words is "twenty-five million, two hundred sixty-four thousand, six hundred ninety".