51797955 has 32 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 24020480.

The previous prime is 51797939. The next prime is 51797959. The reversal of 51797955 is 55979715.

It is not a de Polignac number, because 51797955 - 2⁴ = 51797939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51797959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3030 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (2948400).

Almost surely, 2^51797955 is an apocalyptic number.

51797955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51797955 is a deficient number, since it is larger than the sum of its proper divisors (42550845).

51797955 is a wasteful number, since it uses less digits than its factorization.

51797955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13691.

The product of its digits is 496125, while the sum is 48.

The square root of 51797955 is about 7197.0796160665. The cubic root of 51797955 is about 372.7670682096.

The spelling of 51797955 in words is "fifty-one million, seven hundred ninety-seven thousand, nine hundred fifty-five".