51630026143256 has 96 divisors (see below), whose sum is σ = 113781664664640. Its totient is φ = 21869020800000.

The previous prime is 51630026143249. The next prime is 51630026143259. The reversal of 51630026143256 is 65234162003615.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630026143259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13869920 + ... + 17194031.

It is an arithmetic number, because the mean of its divisors is an integer number (1185225673590).

Almost surely, 2^{51630026143256} is an apocalyptic number.

It is an amenable number.

51630026143256 is an abundant number, since it is smaller than the sum of its proper divisors (62151638521384).

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

51630026143256 is a wasteful number, since it uses less digits than its factorization.

51630026143256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31064097 (or 31064082 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 51630026143256 in words is "fifty-one trillion, six hundred thirty billion, twenty-six million, one hundred forty-three thousand, two hundred fifty-six".