25512464 has 10 divisors (see below), whose sum is σ = 49430430. Its totient is φ = 12756224.

The previous prime is 25512437. The next prime is 25512467. The reversal of 25512464 is 46421552.

It can be written as a sum of positive squares in only one way, i.e., 15272464 + 10240000 = 3908^2 + 3200^2 .

It is not an unprimeable number, because it can be changed into a prime (25512467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797249 + ... + 797280.

It is an arithmetic number, because the mean of its divisors is an integer number (4943043).

Almost surely, 2^25512464 is an apocalyptic number.

It is an amenable number.

25512464 is a deficient number, since it is larger than the sum of its proper divisors (23917966).

25512464 is a wasteful number, since it uses less digits than its factorization.

25512464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594537 (or 1594531 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 25512464 is about 5050.9864383108. The cubic root of 25512464 is about 294.3862140087.

The spelling of 25512464 in words is "twenty-five million, five hundred twelve thousand, four hundred sixty-four".