52268621 has 2 divisors, whose sum is σ = 52268622. Its totient is φ = 52268620.

The previous prime is 52268617. The next prime is 52268647. The reversal of 52268621 is 12686225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 3422500 = 6989^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 52268621 - 2² = 52268617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52268921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26134310 + 26134311.

It is an arithmetic number, because the mean of its divisors is an integer number (26134311).

Almost surely, 2^52268621 is an apocalyptic number.

It is an amenable number.

52268621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52268621 is an equidigital number, since it uses as much as digits as its factorization.

52268621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 52268621 is about 7229.7040741651. The cubic root of 52268621 is about 373.8927242442.

The spelling of 52268621 in words is "fifty-two million, two hundred sixty-eight thousand, six hundred twenty-one".