25228464 has 20 divisors (see below), whose sum is σ = 65173656. Its totient is φ = 8409472.

The previous prime is 25228457. The next prime is 25228481. The reversal of 25228464 is 46482252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262749 + ... + 262844.

Almost surely, 2^25228464 is an apocalyptic number.

25228464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25228464 is an abundant number, since it is smaller than the sum of its proper divisors (39945192).

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

25228464 is a wasteful number, since it uses less digits than its factorization.

25228464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525604 (or 525598 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 25228464 is about 5022.7944413444. The cubic root of 25228464 is about 293.2897846278.

The spelling of 25228464 in words is "twenty-five million, two hundred twenty-eight thousand, four hundred sixty-four".