51335512230 has 64 divisors (see below), whose sum is σ = 123929906688. Its totient is φ = 13609052160.

The previous prime is 51335512223. The next prime is 51335512231. The reversal of 51335512230 is 3221553315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335512231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13123975 + ... + 13127885.

It is an arithmetic number, because the mean of its divisors is an integer number (1936404792).

Almost surely, 2^51335512230 is an apocalyptic number.

51335512230 is an abundant number, since it is smaller than the sum of its proper divisors (72594394458).

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

51335512230 is a wasteful number, since it uses less digits than its factorization.

51335512230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 51335512230 in words is "fifty-one billion, three hundred thirty-five million, five hundred twelve thousand, two hundred thirty".