52157983 has 4 divisors (see below), whose sum is σ = 54903160. Its totient is φ = 49412808.

The previous prime is 52157981. The next prime is 52157993. The reversal of 52157983 is 38975125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52157983 - 2¹ = 52157981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52157981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372560 + ... + 1372597.

It is an arithmetic number, because the mean of its divisors is an integer number (13725790).

Almost surely, 2^52157983 is an apocalyptic number.

52157983 is a deficient number, since it is larger than the sum of its proper divisors (2745177).

52157983 is a wasteful number, since it uses less digits than its factorization.

52157983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745176.

The product of its digits is 75600, while the sum is 40.

The square root of 52157983 is about 7222.0483936346. The cubic root of 52157983 is about 373.6287292375.

The spelling of 52157983 in words is "fifty-two million, one hundred fifty-seven thousand, nine hundred eighty-three".