51550733577 has 32 divisors (see below), whose sum is σ = 79350755328. Its totient is φ = 29158842816.

The previous prime is 51550733501. The next prime is 51550733579. The reversal of 51550733577 is 77533705515.

It is not a de Polignac number, because 51550733577 - 2¹⁰ = 51550732553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51550733579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7378828 + ... + 7385810.

It is an arithmetic number, because the mean of its divisors is an integer number (2479711104).

Almost surely, 2^51550733577 is an apocalyptic number.

It is an amenable number.

51550733577 is a deficient number, since it is larger than the sum of its proper divisors (27800021751).

51550733577 is a wasteful number, since it uses less digits than its factorization.

51550733577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10509.

The product of its (nonzero) digits is 1929375, while the sum is 48.

The spelling of 51550733577 in words is "fifty-one billion, five hundred fifty million, seven hundred thirty-three thousand, five hundred seventy-seven".