52501504021 has 2 divisors, whose sum is σ = 52501504022. Its totient is φ = 52501504020.

The previous prime is 52501503991. The next prime is 52501504051. The reversal of 52501504021 is 12040510525.

It is a balanced prime because it is at equal distance from previous prime (52501503991) and next prime (52501504051).

It can be written as a sum of positive squares in only one way, i.e., 46122287121 + 6379216900 = 214761^2 + 79870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52501504021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52501504051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26250752010 + 26250752011.

It is an arithmetic number, because the mean of its divisors is an integer number (26250752011).

Almost surely, 2^52501504021 is an apocalyptic number.

It is an amenable number.

52501504021 is a deficient number, since it is larger than the sum of its proper divisors (1).

52501504021 is an equidigital number, since it uses as much as digits as its factorization.

52501504021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 52501504021 in words is "fifty-two billion, five hundred one million, five hundred four thousand, twenty-one".