52775213 has 2 divisors, whose sum is σ = 52775214. Its totient is φ = 52775212.

The previous prime is 52775197. The next prime is 52775249. The reversal of 52775213 is 31257725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 13675204 = 6253^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 52775213 - 2⁴ = 52775197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52775213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52745213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26387606 + 26387607.

It is an arithmetic number, because the mean of its divisors is an integer number (26387607).

Almost surely, 2^52775213 is an apocalyptic number.

It is an amenable number.

52775213 is a deficient number, since it is larger than the sum of its proper divisors (1).

52775213 is an equidigital number, since it uses as much as digits as its factorization.

52775213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 32.

The square root of 52775213 is about 7264.6550503104. The cubic root of 52775213 is about 375.0967762080.

The spelling of 52775213 in words is "fifty-two million, seven hundred seventy-five thousand, two hundred thirteen".