25259628 has 12 divisors (see below), whose sum is σ = 58939160. Its totient is φ = 8419872.

The previous prime is 25259627. The next prime is 25259629. The reversal of 25259628 is 82695252.

It is an interprime number because it is at equal distance from previous prime (25259627) and next prime (25259629).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25259623) 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, 1052473 + ... + 1052496.

Almost surely, 2^25259628 is an apocalyptic number.

It is an amenable number.

25259628 is an abundant number, since it is smaller than the sum of its proper divisors (33679532).

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

25259628 is a wasteful number, since it uses less digits than its factorization.

25259628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104976 (or 2104974 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 25259628 is about 5025.8957410595. The cubic root of 25259628 is about 293.4104990971.

The spelling of 25259628 in words is "twenty-five million, two hundred fifty-nine thousand, six hundred twenty-eight".