25212955 has 16 divisors (see below), whose sum is σ = 32223744. Its totient is φ = 18872320.

The previous prime is 25212953. The next prime is 25212961. The reversal of 25212955 is 55921252.

It is not a de Polignac number, because 25212955 - 2¹ = 25212953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25212953) 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, 15459 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (2013984).

Almost surely, 2^25212955 is an apocalyptic number.

25212955 is a deficient number, since it is larger than the sum of its proper divisors (7010789).

25212955 is a wasteful number, since it uses less digits than its factorization.

25212955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its digits is 9000, while the sum is 31.

The square root of 25212955 is about 5021.2503422952. The cubic root of 25212955 is about 293.2296731116.

It can be divided in two parts, 2521 and 2955, that added together give a square (5476 = 74²).

The spelling of 25212955 in words is "twenty-five million, two hundred twelve thousand, nine hundred fifty-five".