51580194 has 16 divisors (see below), whose sum is σ = 104574432. Its totient is φ = 16957728.

The previous prime is 51580181. The next prime is 51580201. The reversal of 51580194 is 49108515.

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, 58444 + ... + 59319.

It is an arithmetic number, because the mean of its divisors is an integer number (6535902).

Almost surely, 2^51580194 is an apocalyptic number.

51580194 is an abundant number, since it is smaller than the sum of its proper divisors (52994238).

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

51580194 is a wasteful number, since it uses less digits than its factorization.

51580194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117841.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 51580194 is about 7181.9352545118. The cubic root of 51580194 is about 372.2439577945.

The spelling of 51580194 in words is "fifty-one million, five hundred eighty thousand, one hundred ninety-four".