52607021 has 2 divisors, whose sum is σ = 52607022. Its totient is φ = 52607020.

The previous prime is 52607011. The next prime is 52607033. The reversal of 52607021 is 12070625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 44521 = 7250^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 52607021 - 2²² = 48412717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52607011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26303510 + 26303511.

It is an arithmetic number, because the mean of its divisors is an integer number (26303511).

Almost surely, 2^52607021 is an apocalyptic number.

It is an amenable number.

52607021 is a deficient number, since it is larger than the sum of its proper divisors (1).

52607021 is an equidigital number, since it uses as much as digits as its factorization.

52607021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 52607021 is about 7253.0697639000. The cubic root of 52607021 is about 374.6978805141.

Adding to 52607021 its reverse (12070625), we get a palindrome (64677646).

The spelling of 52607021 in words is "fifty-two million, six hundred seven thousand, twenty-one".