52777913 has 4 divisors (see below), whose sum is σ = 52819188. Its totient is φ = 52736640.

The previous prime is 52777891. The next prime is 52777927. The reversal of 52777913 is 31977725.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44729344 + 8048569 = 6688^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 52777913 - 2⁶ = 52777849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52777943) 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, 18656 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (13204797).

Almost surely, 2^52777913 is an apocalyptic number.

It is an amenable number.

52777913 is a deficient number, since it is larger than the sum of its proper divisors (41275).

52777913 is a wasteful number, since it uses less digits than its factorization.

52777913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41274.

The product of its digits is 92610, while the sum is 41.

The square root of 52777913 is about 7264.8408791934. The cubic root of 52777913 is about 375.1031727969.

The spelling of 52777913 in words is "fifty-two million, seven hundred seventy-seven thousand, nine hundred thirteen".