51553034331 has 32 divisors (see below), whose sum is σ = 71803368000. Its totient is φ = 32860262400.

The previous prime is 51553034297. The next prime is 51553034339. The reversal of 51553034331 is 13343035515.

It is a happy number.

It is not a de Polignac number, because 51553034331 - 2¹⁴ = 51553017947 is a prime.

It is a super-2 number, since 2×51553034331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51553034292 and 51553034301.

It is not an unprimeable number, because it can be changed into a prime (51553034339) 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, 4362631 + ... + 4374431.

It is an arithmetic number, because the mean of its divisors is an integer number (2243855250).

Almost surely, 2^51553034331 is an apocalyptic number.

51553034331 is a deficient number, since it is larger than the sum of its proper divisors (20250333669).

51553034331 is a wasteful number, since it uses less digits than its factorization.

51553034331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12319.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 51553034331 its reverse (13343035515), we get a palindrome (64896069846).

The spelling of 51553034331 in words is "fifty-one billion, five hundred fifty-three million, thirty-four thousand, three hundred thirty-one".