5251611288 has 64 divisors (see below), whose sum is σ = 16368664320. Its totient is φ = 1364054400.

The previous prime is 5251611271. The next prime is 5251611359. The reversal of 5251611288 is 8821161525.

It is a super-2 number, since 2×5251611288² = 55158842240498037888, which contains 22 as substring.

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, 1419043 + ... + 1422738.

It is an arithmetic number, because the mean of its divisors is an integer number (255760380).

Almost surely, 2^5251611288 is an apocalyptic number.

It is an amenable number.

5251611288 is an abundant number, since it is smaller than the sum of its proper divisors (11117053032).

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

5251611288 is a wasteful number, since it uses less digits than its factorization.

5251611288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841808 (or 2841804 counting only the distinct ones).

The product of its digits is 38400, while the sum is 39.

The square root of 5251611288 is about 72468.0018214936. The cubic root of 5251611288 is about 1738.1911099710.

The spelling of 5251611288 in words is "five billion, two hundred fifty-one million, six hundred eleven thousand, two hundred eighty-eight".