25212577 has 32 divisors (see below), whose sum is σ = 30336768. Its totient is φ = 20756736.

The previous prime is 25212559. The next prime is 25212587. The reversal of 25212577 is 77521252.

It is not a de Polignac number, because 25212577 - 2¹⁵ = 25179809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25212527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475683 + ... + 475735.

It is an arithmetic number, because the mean of its divisors is an integer number (948024).

Almost surely, 2^25212577 is an apocalyptic number.

It is an amenable number.

25212577 is a deficient number, since it is larger than the sum of its proper divisors (5124191).

25212577 is a wasteful number, since it uses less digits than its factorization.

25212577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its digits is 9800, while the sum is 31.

The square root of 25212577 is about 5021.2127021268. The cubic root of 25212577 is about 293.2282077092.

The spelling of 25212577 in words is "twenty-five million, two hundred twelve thousand, five hundred seventy-seven".