52212156461256 has 128 divisors (see below), whose sum is σ = 142670478504960. Its totient is φ = 15791463072000.

The previous prime is 52212156461249. The next prime is 52212156461279. The reversal of 52212156461256 is 65216465121225.

It is a super-2 number, since 2×52212156461256² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1506783531 + ... + 1506818181.

It is an arithmetic number, because the mean of its divisors is an integer number (1114613113320).

Almost surely, 2^{52212156461256} 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 52212156461256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71335239252480).

52212156461256 is an abundant number, since it is smaller than the sum of its proper divisors (90458322043704).

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

52212156461256 is a wasteful number, since it uses less digits than its factorization.

52212156461256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45475 (or 45471 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The spelling of 52212156461256 in words is "fifty-two trillion, two hundred twelve billion, one hundred fifty-six million, four hundred sixty-one thousand, two hundred fifty-six".