25113312 has 72 divisors (see below), whose sum is σ = 81624816. Its totient is φ = 7174656.

The previous prime is 25113289. The next prime is 25113329. The reversal of 25113312 is 21331152.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4213 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (1133678).

Almost surely, 2^25113312 is an apocalyptic number.

It is an amenable number.

25113312 is an abundant number, since it is smaller than the sum of its proper divisors (56511504).

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

25113312 is a wasteful number, since it uses less digits than its factorization.

25113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12480 (or 12469 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 25113312 is about 5011.3183894061. The cubic root of 25113312 is about 292.8428764587.

Adding to 25113312 its reverse (21331152), we get a palindrome (46444464).

It can be divided in two parts, 25113 and 312, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 25113312 in words is "twenty-five million, one hundred thirteen thousand, three hundred twelve".