51022137 has 16 divisors (see below), whose sum is σ = 69006080. Its totient is φ = 33530112.

The previous prime is 51022133. The next prime is 51022159. The reversal of 51022137 is 73122015.

It is not a de Polignac number, because 51022137 - 2² = 51022133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51022133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109968 + ... + 110430.

It is an arithmetic number, because the mean of its divisors is an integer number (4312880).

Almost surely, 2^51022137 is an apocalyptic number.

It is an amenable number.

51022137 is a deficient number, since it is larger than the sum of its proper divisors (17983943).

51022137 is a wasteful number, since it uses less digits than its factorization.

51022137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 51022137 is about 7142.9781604034. The cubic root of 51022137 is about 370.8966250540.

The spelling of 51022137 in words is "fifty-one million, twenty-two thousand, one hundred thirty-seven".