5257343988 has 96 divisors (see below), whose sum is σ = 14719443200. Its totient is φ = 1613146752.

The previous prime is 5257343983. The next prime is 5257343999. The reversal of 5257343988 is 8893437525.

5257343988 is a `hidden beast` number, since 525 + 7 + 3 + 4 + 39 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257343983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518673 + ... + 528711.

Almost surely, 2^5257343988 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 5257343988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7359721600).

5257343988 is an abundant number, since it is smaller than the sum of its proper divisors (9462099212).

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

5257343988 is a wasteful number, since it uses less digits than its factorization.

5257343988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438 (or 10430 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 5257343988 is about 72507.5443522948. The cubic root of 5257343988 is about 1738.8233543142.

The spelling of 5257343988 in words is "five billion, two hundred fifty-seven million, three hundred forty-three thousand, nine hundred eighty-eight".