51313254555 has 32 divisors (see below), whose sum is σ = 82333339200. Its totient is φ = 27289792512.

The previous prime is 51313254547. The next prime is 51313254581. The reversal of 51313254555 is 55545231315.

It is not a de Polignac number, because 51313254555 - 2³ = 51313254547 is a prime.

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, 12282627 + ... + 12286803.

It is an arithmetic number, because the mean of its divisors is an integer number (2572916850).

Almost surely, 2^51313254555 is an apocalyptic number.

51313254555 is a deficient number, since it is larger than the sum of its proper divisors (31020084645).

51313254555 is a wasteful number, since it uses less digits than its factorization.

51313254555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303.

The product of its digits is 225000, while the sum is 39.

The spelling of 51313254555 in words is "fifty-one billion, three hundred thirteen million, two hundred fifty-four thousand, five hundred fifty-five".