51111255225330 has 40 divisors (see below), whose sum is σ = 137432486274732. Its totient is φ = 13629668059872.

The previous prime is 51111255225287. The next prime is 51111255225347. The reversal of 51111255225330 is 3352255211115.

51111255225330 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 125 + 522 + 5 + 3 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49821561116721 + 1289694108609 = 7058439^2 + 1135647^2 .

It is a super-2 number, since 2×51111255225330² (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 19 ways as a sum of consecutive naturals, for example, 31550156737 + ... + 31550158356.

Almost surely, 2^{51111255225330} is an apocalyptic number.

51111255225330 is an abundant number, since it is smaller than the sum of its proper divisors (86321231049402).

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

51111255225330 is a wasteful number, since it uses less digits than its factorization.

51111255225330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63100315112 (or 63100315103 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 51111255225330 in words is "fifty-one trillion, one hundred eleven billion, two hundred fifty-five million, two hundred twenty-five thousand, three hundred thirty".