52149979 has 8 divisors (see below), whose sum is σ = 60318720. Its totient is φ = 44160936.

The previous prime is 52149973. The next prime is 52149989. The reversal of 52149979 is 97994125.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52149979 - 2³ = 52149971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52149971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44299 + ... + 45460.

It is an arithmetic number, because the mean of its divisors is an integer number (7539840).

Almost surely, 2^52149979 is an apocalyptic number.

52149979 is a deficient number, since it is larger than the sum of its proper divisors (8168741).

52149979 is an equidigital number, since it uses as much as digits as its factorization.

52149979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89849.

The product of its digits is 204120, while the sum is 46.

The square root of 52149979 is about 7221.4942359598. The cubic root of 52149979 is about 373.6096162966.

The spelling of 52149979 in words is "fifty-two million, one hundred forty-nine thousand, nine hundred seventy-nine".