51357995 has 16 divisors (see below), whose sum is σ = 67036032. Its totient is φ = 37545600.

The previous prime is 51357983. The next prime is 51358001. The reversal of 51357995 is 59975315.

It is not a de Polignac number, because 51357995 - 2¹⁰ = 51356971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2654 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (4189752).

Almost surely, 2^51357995 is an apocalyptic number.

51357995 is a deficient number, since it is larger than the sum of its proper divisors (15678037).

51357995 is a wasteful number, since it uses less digits than its factorization.

51357995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7942.

The product of its digits is 212625, while the sum is 44.

The square root of 51357995 is about 7166.4492602683. The cubic root of 51357995 is about 371.7086664739.

The spelling of 51357995 in words is "fifty-one million, three hundred fifty-seven thousand, nine hundred ninety-five".