51237875 has 16 divisors (see below), whose sum is σ = 68865888. Its totient is φ = 37836000.

The previous prime is 51237853. The next prime is 51237877. The reversal of 51237875 is 57873215.

It is a happy number.

It is not a de Polignac number, because 51237875 - 2⁸ = 51237619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51237877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14141 + ... + 17390.

It is an arithmetic number, because the mean of its divisors is an integer number (4304118).

Almost surely, 2^51237875 is an apocalyptic number.

51237875 is a deficient number, since it is larger than the sum of its proper divisors (17628013).

51237875 is a wasteful number, since it uses less digits than its factorization.

51237875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31559 (or 31549 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 51237875 is about 7158.0636348107. The cubic root of 51237875 is about 371.4186467128.

The spelling of 51237875 in words is "fifty-one million, two hundred thirty-seven thousand, eight hundred seventy-five".