51031322355 has 64 divisors (see below), whose sum is σ = 89518520448. Its totient is φ = 24670863360.

The previous prime is 51031322351. The next prime is 51031322401. The reversal of 51031322355 is 55322313015.

It is not a de Polignac number, because 51031322355 - 2² = 51031322351 is a prime.

It is a super-2 number, since 2×51031322355² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51031322351) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8049747 + ... + 8056083.

It is an arithmetic number, because the mean of its divisors is an integer number (1398726882).

Almost surely, 2^51031322355 is an apocalyptic number.

51031322355 is a deficient number, since it is larger than the sum of its proper divisors (38487198093).

51031322355 is a wasteful number, since it uses less digits than its factorization.

51031322355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 51031322355 in words is "fifty-one billion, thirty-one million, three hundred twenty-two thousand, three hundred fifty-five".