51699130 has 32 divisors (see below), whose sum is σ = 106634880. Its totient is φ = 17678400.

The previous prime is 51699119. The next prime is 51699139. The reversal of 51699130 is 3199615.

It is not an unprimeable number, because it can be changed into a prime (51699139) 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, 34905 + ... + 36355.

It is an arithmetic number, because the mean of its divisors is an integer number (3332340).

Almost surely, 2^51699130 is an apocalyptic number.

51699130 is an abundant number, since it is smaller than the sum of its proper divisors (54935750).

51699130 is a wasteful number, since it uses less digits than its factorization.

51699130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 51699130 is about 7190.2107062311. The cubic root of 51699130 is about 372.5298506175.

The spelling of 51699130 in words is "fifty-one million, six hundred ninety-nine thousand, one hundred thirty".