52397779 has 8 divisors (see below), whose sum is σ = 61276160. Its totient is φ = 43867656.

The previous prime is 52397759. The next prime is 52397783. The reversal of 52397779 is 97779325.

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

It is not a de Polignac number, because 52397779 - 2⁵ = 52397747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52397759) 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, 86739 + ... + 87340.

It is an arithmetic number, because the mean of its divisors is an integer number (7659520).

Almost surely, 2^52397779 is an apocalyptic number.

52397779 is a deficient number, since it is larger than the sum of its proper divisors (8878381).

52397779 is a wasteful number, since it uses less digits than its factorization.

52397779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174129.

The product of its digits is 833490, while the sum is 49.

The square root of 52397779 is about 7238.6310169810. The cubic root of 52397779 is about 374.2004392333.

The spelling of 52397779 in words is "fifty-two million, three hundred ninety-seven thousand, seven hundred seventy-nine".