52155691312 has 40 divisors (see below), whose sum is σ = 105270918480. Its totient is φ = 25010565120.

The previous prime is 52155691303. The next prime is 52155691409. The reversal of 52155691312 is 21319655125.

It is a super-2 number, since 2×52155691312² (a number of 22 digits) contains 22 as substring.

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, 635073 + ... + 712480.

It is an arithmetic number, because the mean of its divisors is an integer number (2631772962).

Almost surely, 2^52155691312 is an apocalyptic number.

It is an amenable number.

52155691312 is an abundant number, since it is smaller than the sum of its proper divisors (53115227168).

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

52155691312 is a wasteful number, since it uses less digits than its factorization.

52155691312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347661 (or 1347655 counting only the distinct ones).

The product of its digits is 81000, while the sum is 40.

The spelling of 52155691312 in words is "fifty-two billion, one hundred fifty-five million, six hundred ninety-one thousand, three hundred twelve".