52756013 has 2 divisors, whose sum is σ = 52756014. Its totient is φ = 52756012.

The previous prime is 52756007. The next prime is 52756021. The reversal of 52756013 is 31065725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29735209 + 23020804 = 5453^2 + 4798^2 .

It is a cyclic number.

It is not a de Polignac number, because 52756013 - 2⁸ = 52755757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52756003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26378006 + 26378007.

It is an arithmetic number, because the mean of its divisors is an integer number (26378007).

Almost surely, 2^52756013 is an apocalyptic number.

It is an amenable number.

52756013 is a deficient number, since it is larger than the sum of its proper divisors (1).

52756013 is an equidigital number, since it uses as much as digits as its factorization.

52756013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 52756013 is about 7263.3334633624. Note that the first 3 decimals coincide. The cubic root of 52756013 is about 375.0512830605.

The spelling of 52756013 in words is "fifty-two million, seven hundred fifty-six thousand, thirteen".