51255922 has 4 divisors (see below), whose sum is σ = 76883886. Its totient is φ = 25627960.

The previous prime is 51255913. The next prime is 51255931. The reversal of 51255922 is 22955215.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51255913) and next prime (51255931).

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 1002001 = 7089^2 + 1001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12813979 + ... + 12813982.

Almost surely, 2^51255922 is an apocalyptic number.

51255922 is a deficient number, since it is larger than the sum of its proper divisors (25627964).

51255922 is a wasteful number, since it uses less digits than its factorization.

51255922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25627963.

The product of its digits is 9000, while the sum is 31.

The square root of 51255922 is about 7159.3241301117. The cubic root of 51255922 is about 371.4622486089.

The spelling of 51255922 in words is "fifty-one million, two hundred fifty-five thousand, nine hundred twenty-two".