25623263420 has 24 divisors (see below), whose sum is σ = 54043836000. Its totient is φ = 10204546752.

The previous prime is 25623263401. The next prime is 25623263431. The reversal of 25623263420 is 2436232652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2792720 + ... + 2801879.

It is an arithmetic number, because the mean of its divisors is an integer number (2251826500).

Almost surely, 2^25623263420 is an apocalyptic number.

25623263420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25623263420 is an abundant number, since it is smaller than the sum of its proper divisors (28420572580).

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

25623263420 is a wasteful number, since it uses less digits than its factorization.

25623263420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594837 (or 5594835 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 25623263420 in words is "twenty-five billion, six hundred twenty-three million, two hundred sixty-three thousand, four hundred twenty".