51575694 has 16 divisors (see below), whose sum is σ = 103348560. Its totient is φ = 17159040.

The previous prime is 51575653. The next prime is 51575701. The reversal of 51575694 is 49657515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4699 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (6459285).

Almost surely, 2^51575694 is an apocalyptic number.

51575694 is an abundant number, since it is smaller than the sum of its proper divisors (51772866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51575694 is a wasteful number, since it uses less digits than its factorization.

51575694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16435.

The product of its digits is 189000, while the sum is 42.

The square root of 51575694 is about 7181.6219616463. The cubic root of 51575694 is about 372.2331322792.

The spelling of 51575694 in words is "fifty-one million, five hundred seventy-five thousand, six hundred ninety-four".