51135540030 has 64 divisors (see below), whose sum is σ = 138934336320. Its totient is φ = 13378854528.

The previous prime is 51135540023. The next prime is 51135540067. The reversal of 51135540030 is 3004553115.

51135540030 is a `hidden beast` number, since 5 + 113 + 5 + 540 + 0 + 3 + 0 = 666.

It is a super-2 number, since 2×51135540030² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51135539976 and 51135540003.

It is a congruent number.

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, 1772397 + ... + 1801016.

It is an arithmetic number, because the mean of its divisors is an integer number (2170849005).

Almost surely, 2^51135540030 is an apocalyptic number.

51135540030 is an abundant number, since it is smaller than the sum of its proper divisors (87798796290).

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

51135540030 is a wasteful number, since it uses less digits than its factorization.

51135540030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573482 (or 3573476 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 51135540030 in words is "fifty-one billion, one hundred thirty-five million, five hundred forty thousand, thirty".