51122052137 has 64 divisors (see below), whose sum is σ = 61641216000. Its totient is φ = 41943432960.

The previous prime is 51122052127. The next prime is 51122052211. The reversal of 51122052137 is 73125022115.

It is not a de Polignac number, because 51122052137 - 2¹⁸ = 51121789993 is a prime.

It is a super-2 number, since 2×51122052137² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122052127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85345364 + ... + 85345962.

It is an arithmetic number, because the mean of its divisors is an integer number (963144000).

Almost surely, 2^51122052137 is an apocalyptic number.

It is an amenable number.

51122052137 is a deficient number, since it is larger than the sum of its proper divisors (10519163863).

51122052137 is a wasteful number, since it uses less digits than its factorization.

51122052137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 51122052137 in words is "fifty-one billion, one hundred twenty-two million, fifty-two thousand, one hundred thirty-seven".