25297008 has 40 divisors (see below), whose sum is σ = 71293056. Its totient is φ = 7665600.

The previous prime is 25297007. The next prime is 25297009. The reversal of 25297008 is 80079252.

It is an interprime number because it is at equal distance from previous prime (25297007) and next prime (25297009).

It is a super-2 number, since 2×25297008² = 1279877227504128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 25297008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25297007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23428 + ... + 24483.

Almost surely, 2^25297008 is an apocalyptic number.

It is an amenable number.

25297008 is an abundant number, since it is smaller than the sum of its proper divisors (45996048).

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

25297008 is a wasteful number, since it uses less digits than its factorization.

25297008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47933 (or 47927 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 25297008 is about 5029.6131063930. The cubic root of 25297008 is about 293.5551604884. Note that the first 3 decimals are identical.

The spelling of 25297008 in words is "twenty-five million, two hundred ninety-seven thousand, eight".