52701521 has 2 divisors, whose sum is σ = 52701522. Its totient is φ = 52701520.

The previous prime is 52701503. The next prime is 52701527. The reversal of 52701521 is 12510725.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090000 + 24611521 = 5300^2 + 4961^2 .

It is a cyclic number.

It is not a de Polignac number, because 52701521 - 2¹⁴ = 52685137 is a prime.

It is not a weakly prime, because it can be changed into another prime (52701527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26350760 + 26350761.

It is an arithmetic number, because the mean of its divisors is an integer number (26350761).

Almost surely, 2^52701521 is an apocalyptic number.

It is an amenable number.

52701521 is a deficient number, since it is larger than the sum of its proper divisors (1).

52701521 is an equidigital number, since it uses as much as digits as its factorization.

52701521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 52701521 is about 7259.5813240159. The cubic root of 52701521 is about 374.9221076737.

The spelling of 52701521 in words is "fifty-two million, seven hundred one thousand, five hundred twenty-one".