51107157 has 24 divisors (see below), whose sum is σ = 75847200. Its totient is φ = 33149088.

The previous prime is 51107143. The next prime is 51107171. The reversal of 51107157 is 75170115.

It is an interprime number because it is at equal distance from previous prime (51107143) and next prime (51107171).

It is not a de Polignac number, because 51107157 - 2⁷ = 51107029 is a prime.

It is a super-2 number, since 2×51107157² = 5223882993245298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51107157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51107107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57438 + ... + 58320.

It is an arithmetic number, because the mean of its divisors is an integer number (3160300).

Almost surely, 2^51107157 is an apocalyptic number.

It is an amenable number.

51107157 is a deficient number, since it is larger than the sum of its proper divisors (24740043).

51107157 is a wasteful number, since it uses less digits than its factorization.

51107157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The square root of 51107157 is about 7148.9269824219. The cubic root of 51107157 is about 371.1025234732.

The spelling of 51107157 in words is "fifty-one million, one hundred seven thousand, one hundred fifty-seven".