25625623 has 16 divisors (see below), whose sum is σ = 28134400. Its totient is φ = 23250240.

The previous prime is 25625617. The next prime is 25625627. The reversal of 25625623 is 32652652.

It is a cyclic number.

It is not a de Polignac number, because 25625623 - 2⁹ = 25625111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25625627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81715 + ... + 82027.

It is an arithmetic number, because the mean of its divisors is an integer number (1758400).

Almost surely, 2^25625623 is an apocalyptic number.

25625623 is a deficient number, since it is larger than the sum of its proper divisors (2508777).

25625623 is a wasteful number, since it uses less digits than its factorization.

25625623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502.

The product of its digits is 21600, while the sum is 31.

The square root of 25625623 is about 5062.1757180090. The cubic root of 25625623 is about 294.8208162069.

The spelling of 25625623 in words is "twenty-five million, six hundred twenty-five thousand, six hundred twenty-three".