51594942 has 24 divisors (see below), whose sum is σ = 120037896. Its totient is φ = 14741328.

The previous prime is 51594923. The next prime is 51594947. The reversal of 51594942 is 24949515.

It is a self number, because there is not a number n which added to its sum of digits gives 51594942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51594947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87453 + ... + 88040.

It is an arithmetic number, because the mean of its divisors is an integer number (5001579).

Almost surely, 2^51594942 is an apocalyptic number.

51594942 is an abundant number, since it is smaller than the sum of its proper divisors (68442954).

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

51594942 is a wasteful number, since it uses less digits than its factorization.

51594942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175512 (or 175505 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 51594942 is about 7182.9619238863. The cubic root of 51594942 is about 372.2794322038.

It can be divided in two parts, 5159 and 4942, that added together give a palindrome (10101).

The spelling of 51594942 in words is "fifty-one million, five hundred ninety-four thousand, nine hundred forty-two".