25464020 has 48 divisors (see below), whose sum is σ = 56114688. Its totient is φ = 9694080.

The previous prime is 25464017. The next prime is 25464031. The reversal of 25464020 is 2046452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41234 + ... + 41846.

It is an arithmetic number, because the mean of its divisors is an integer number (1169056).

Almost surely, 2^25464020 is an apocalyptic number.

25464020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25464020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28057344).

25464020 is an abundant number, since it is smaller than the sum of its proper divisors (30650668).

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

25464020 is a wasteful number, since it uses less digits than its factorization.

25464020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 25464020 is about 5046.1886607617. The cubic root of 25464020 is about 294.1997655094.

The spelling of 25464020 in words is "twenty-five million, four hundred sixty-four thousand, twenty".