51751955 has 16 divisors (see below), whose sum is σ = 65055744. Its totient is φ = 39446880.

The previous prime is 51751949. The next prime is 51751957. The reversal of 51751955 is 55915715.

It is not a de Polignac number, because 51751955 - 2⁸ = 51751699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51751957) 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, 35042 + ... + 36488.

It is an arithmetic number, because the mean of its divisors is an integer number (4065984).

Almost surely, 2^51751955 is an apocalyptic number.

51751955 is a deficient number, since it is larger than the sum of its proper divisors (13303789).

51751955 is a wasteful number, since it uses less digits than its factorization.

51751955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786.

The product of its digits is 39375, while the sum is 38.

The square root of 51751955 is about 7193.8831655789. The cubic root of 51751955 is about 372.6566882817.

The spelling of 51751955 in words is "fifty-one million, seven hundred fifty-one thousand, nine hundred fifty-five".