52777213 has 4 divisors (see below), whose sum is σ = 52809568. Its totient is φ = 52744860.

The previous prime is 52777199. The next prime is 52777229. The reversal of 52777213 is 31277725.

It is a happy number.

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 52777213 - 2⁵ = 52777181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52777253) 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, 13593 + ... + 17038.

It is an arithmetic number, because the mean of its divisors is an integer number (13202392).

Almost surely, 2^52777213 is an apocalyptic number.

It is an amenable number.

52777213 is a deficient number, since it is larger than the sum of its proper divisors (32355).

52777213 is a wasteful number, since it uses less digits than its factorization.

52777213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32354.

The product of its digits is 20580, while the sum is 34.

The square root of 52777213 is about 7264.7927017913. The cubic root of 52777213 is about 375.1015144430.

The spelling of 52777213 in words is "fifty-two million, seven hundred seventy-seven thousand, two hundred thirteen".