52979181 has 4 divisors (see below), whose sum is σ = 70638912. Its totient is φ = 35319452.

The previous prime is 52979177. The next prime is 52979203. The reversal of 52979181 is 18197925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52979181 - 2² = 52979177 is a prime.

It is a super-2 number, since 2×52979181² = 5613587238861522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52979131) 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, 8829861 + ... + 8829866.

It is an arithmetic number, because the mean of its divisors is an integer number (17659728).

Almost surely, 2^52979181 is an apocalyptic number.

It is an amenable number.

52979181 is a deficient number, since it is larger than the sum of its proper divisors (17659731).

52979181 is a wasteful number, since it uses less digits than its factorization.

52979181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17659730.

The product of its digits is 45360, while the sum is 42.

The square root of 52979181 is about 7278.6798940467. The cubic root of 52979181 is about 375.5793852618.

The spelling of 52979181 in words is "fifty-two million, nine hundred seventy-nine thousand, one hundred eighty-one".