51359974 has 8 divisors (see below), whose sum is σ = 78831720. Its totient is φ = 25082736.

The previous prime is 51359947. The next prime is 51359977. The reversal of 51359974 is 47995315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 51359974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51359977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298519 + ... + 298690.

It is an arithmetic number, because the mean of its divisors is an integer number (9853965).

Almost surely, 2^51359974 is an apocalyptic number.

51359974 is a deficient number, since it is larger than the sum of its proper divisors (27471746).

51359974 is a wasteful number, since it uses less digits than its factorization.

51359974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597254.

The product of its digits is 170100, while the sum is 43.

The square root of 51359974 is about 7166.5873328942. The cubic root of 51359974 is about 371.7134408166.

The spelling of 51359974 in words is "fifty-one million, three hundred fifty-nine thousand, nine hundred seventy-four".