25290608 has 20 divisors (see below), whose sum is σ = 56000880. Its totient is φ = 10838784.

The previous prime is 25290607. The next prime is 25290619. The reversal of 25290608 is 80609252.

It is a super-2 number, since 2×25290608² = 1279229706019328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112793 + ... + 113016.

It is an arithmetic number, because the mean of its divisors is an integer number (2800044).

Almost surely, 2^25290608 is an apocalyptic number.

25290608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25290608 is an abundant number, since it is smaller than the sum of its proper divisors (30710272).

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

25290608 is a wasteful number, since it uses less digits than its factorization.

25290608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225824 (or 225818 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 25290608 is about 5028.9768343074. The cubic root of 25290608 is about 293.5304024685.

The spelling of 25290608 in words is "twenty-five million, two hundred ninety thousand, six hundred eight".