25755625 has 45 divisors (see below), whose sum is σ = 38774307. Its totient is φ = 17052000.

The previous prime is 25755619. The next prime is 25755661. The reversal of 25755625 is 52655752.

It is a happy number.

The square root of 25755625 is 5075.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 19263321 + 6492304 = 4389^2 + 2548^2 .

It is not a de Polignac number, because 25755625 - 2⁷ = 25755497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 888111 + ... + 888139.

Almost surely, 2^25755625 is an apocalyptic number.

25755625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25755625 is the 5075-th square number.

25755625 is the 2538-th centered octagonal number.

It is an amenable number.

25755625 is a deficient number, since it is larger than the sum of its proper divisors (13018682).

25755625 is an frugal number, since it uses more digits than its factorization.

25755625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 41 counting only the distinct ones).

The product of its digits is 105000, while the sum is 37.

The cubic root of 25755625 is about 295.3185298266.

The spelling of 25755625 in words is "twenty-five million, seven hundred fifty-five thousand, six hundred twenty-five".