51215224059 has 24 divisors (see below), whose sum is σ = 74502765792. Its totient is φ = 33901666560.

The previous prime is 51215224051. The next prime is 51215224103. The reversal of 51215224059 is 95042251215.

51215224059 is a `hidden beast` number, since 5 + 121 + 522 + 4 + 0 + 5 + 9 = 666.

It is not a de Polignac number, because 51215224059 - 2³ = 51215224051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51215224051) 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, 1029667 + ... + 1078259.

It is an arithmetic number, because the mean of its divisors is an integer number (3104281908).

Almost surely, 2^51215224059 is an apocalyptic number.

51215224059 is a deficient number, since it is larger than the sum of its proper divisors (23287541733).

51215224059 is a wasteful number, since it uses less digits than its factorization.

51215224059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49427 (or 49424 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 51215224059 in words is "fifty-one billion, two hundred fifteen million, two hundred twenty-four thousand, fifty-nine".