5251305920 has 56 divisors (see below), whose sum is σ = 14291060064. Its totient is φ = 1800446976.

The previous prime is 5251305883. The next prime is 5251305931. The reversal of 5251305920 is 295031525.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1169927 + ... + 1174406.

Almost surely, 2^5251305920 is an apocalyptic number.

It is an amenable number.

5251305920 is an abundant number, since it is smaller than the sum of its proper divisors (9039754144).

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

5251305920 is a wasteful number, since it uses less digits than its factorization.

5251305920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344357 (or 2344347 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 5251305920 is about 72465.8948747616. The cubic root of 5251305920 is about 1738.1574188362.

The spelling of 5251305920 in words is "five billion, two hundred fifty-one million, three hundred five thousand, nine hundred twenty".