51042152052 has 24 divisors (see below), whose sum is σ = 132331505600. Its totient is φ = 17014050648.

The previous prime is 51042152011. The next prime is 51042152137. The reversal of 51042152052 is 25025124015.

51042152052 is a `hidden beast` number, since 51 + 0 + 42 + 1 + 520 + 52 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236306152 + ... + 236306367.

Almost surely, 2^51042152052 is an apocalyptic number.

It is an amenable number.

51042152052 is an abundant number, since it is smaller than the sum of its proper divisors (81289353548).

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

51042152052 is a wasteful number, since it uses less digits than its factorization.

51042152052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472612532 (or 472612524 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 51042152052 its reverse (25025124015), we get a palindrome (76067276067).

The spelling of 51042152052 in words is "fifty-one billion, forty-two million, one hundred fifty-two thousand, fifty-two".