5257297920 has 304 divisors, whose sum is σ = 19327315968. Its totient is φ = 1195376640.

The previous prime is 5257297831. The next prime is 5257297931. The reversal of 5257297920 is 297927525.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5257297920.

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, 27525025 + ... + 27525215.

Almost surely, 2^5257297920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5257297920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9663657984).

5257297920 is an abundant number, since it is smaller than the sum of its proper divisors (14070018048).

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

5257297920 is an frugal number, since it uses more digits than its factorization.

5257297920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 48.

The square root of 5257297920 is about 72507.2266743116. The cubic root of 5257297920 is about 1738.8182754284.

The spelling of 5257297920 in words is "five billion, two hundred fifty-seven million, two hundred ninety-seven thousand, nine hundred twenty".