51797442 has 16 divisors (see below), whose sum is σ = 105014880. Its totient is φ = 17029152.

The previous prime is 51797437. The next prime is 51797443. The reversal of 51797442 is 24479715.

51797442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51797442.

It is not an unprimeable number, because it can be changed into a prime (51797443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58692 + ... + 59567.

It is an arithmetic number, because the mean of its divisors is an integer number (6563430).

Almost surely, 2^51797442 is an apocalyptic number.

51797442 is an abundant number, since it is smaller than the sum of its proper divisors (53217438).

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

51797442 is a wasteful number, since it uses less digits than its factorization.

51797442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118337.

The product of its digits is 70560, while the sum is 39.

The square root of 51797442 is about 7197.0439765226. The cubic root of 51797442 is about 372.7658375939.

It can be divided in two parts, 5179 and 7442, that added together give a palindrome (12621).

The spelling of 51797442 in words is "fifty-one million, seven hundred ninety-seven thousand, four hundred forty-two".