25253004 has 24 divisors (see below), whose sum is σ = 67341568. Its totient is φ = 7215120.

The previous prime is 25252991. The next prime is 25253009. The reversal of 25253004 is 40035252.

It is a super-2 number, since 2×25253004² = 1275428422048032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (25253009) 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, 150232 + ... + 150399.

Almost surely, 2^25253004 is an apocalyptic number.

It is an amenable number.

25253004 is an abundant number, since it is smaller than the sum of its proper divisors (42088564).

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

25253004 is a wasteful number, since it uses less digits than its factorization.

25253004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300645 (or 300643 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 25253004 is about 5025.2367108426. The cubic root of 25253004 is about 293.3848491936.

Adding to 25253004 its reverse (40035252), we get a palindrome (65288256).

The spelling of 25253004 in words is "twenty-five million, two hundred fifty-three thousand, four".