51130235 has 24 divisors (see below), whose sum is σ = 69768720. Its totient is φ = 35754048.

The previous prime is 51130231. The next prime is 51130243. The reversal of 51130235 is 53203115.

It is not a de Polignac number, because 51130235 - 2² = 51130231 is a prime.

It is a super-2 number, since 2×51130235² = 5228601862310450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51130231) 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, 22376 + ... + 24554.

It is an arithmetic number, because the mean of its divisors is an integer number (2907030).

Almost surely, 2^51130235 is an apocalyptic number.

51130235 is a deficient number, since it is larger than the sum of its proper divisors (18638485).

51130235 is a wasteful number, since it uses less digits than its factorization.

51130235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 51130235 is about 7150.5408886321. The cubic root of 51130235 is about 371.1583735456.

The spelling of 51130235 in words is "fifty-one million, one hundred thirty thousand, two hundred thirty-five".