52991842 has 8 divisors (see below), whose sum is σ = 81179136. Its totient is φ = 25932132.

The previous prime is 52991833. The next prime is 52991849. The reversal of 52991842 is 24819925.

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

It is a junction number, because it is equal to n+sod(n) for n = 52991795 and 52991804.

It is not an unprimeable number, because it can be changed into a prime (52991849) 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, 281778 + ... + 281965.

It is an arithmetic number, because the mean of its divisors is an integer number (10147392).

Almost surely, 2^52991842 is an apocalyptic number.

52991842 is a deficient number, since it is larger than the sum of its proper divisors (28187294).

52991842 is a wasteful number, since it uses less digits than its factorization.

52991842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563792.

The product of its digits is 51840, while the sum is 40.

The square root of 52991842 is about 7279.5495739778. The cubic root of 52991842 is about 375.6093016161.

The spelling of 52991842 in words is "fifty-two million, nine hundred ninety-one thousand, eight hundred forty-two".