52367621 has 2 divisors, whose sum is σ = 52367622. Its totient is φ = 52367620.

The previous prime is 52367563. The next prime is 52367639. The reversal of 52367621 is 12676325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47416996 + 4950625 = 6886^2 + 2225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52367621 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 (52367221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26183810 + 26183811.

It is an arithmetic number, because the mean of its divisors is an integer number (26183811).

Almost surely, 2^52367621 is an apocalyptic number.

It is an amenable number.

52367621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52367621 is an equidigital number, since it uses as much as digits as its factorization.

52367621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 52367621 is about 7236.5475884568. The cubic root of 52367621 is about 374.1286340103.

The spelling of 52367621 in words is "fifty-two million, three hundred sixty-seven thousand, six hundred twenty-one".