5257091840 has 432 divisors, whose sum is σ = 17081004864. Its totient is φ = 1508474880.

The previous prime is 5257091803. The next prime is 5257091863. The reversal of 5257091840 is 481907525.

It is a super-2 number, since 2×5257091840² = 55274029228389171200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14093894 + ... + 14094266.

Almost surely, 2^5257091840 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 5257091840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8540502432).

5257091840 is an abundant number, since it is smaller than the sum of its proper divisors (11823913024).

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

5257091840 is a wasteful number, since it uses less digits than its factorization.

5257091840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 5257091840 is about 72505.8055606584. The cubic root of 5257091840 is about 1738.7955552429.

The spelling of 5257091840 in words is "five billion, two hundred fifty-seven million, ninety-one thousand, eight hundred forty".