53002825621 has 2 divisors, whose sum is σ = 53002825622. Its totient is φ = 53002825620.

The previous prime is 53002825553. The next prime is 53002825627. The reversal of 53002825621 is 12652820035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32713956900 + 20288868721 = 180870^2 + 142439^2 .

It is a cyclic number.

It is not a de Polignac number, because 53002825621 - 2⁷ = 53002825493 is a prime.

It is a super-3 number, since 3×53002825621³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53002825627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26501412810 + 26501412811.

It is an arithmetic number, because the mean of its divisors is an integer number (26501412811).

Almost surely, 2^53002825621 is an apocalyptic number.

It is an amenable number.

53002825621 is a deficient number, since it is larger than the sum of its proper divisors (1).

53002825621 is an equidigital number, since it uses as much as digits as its factorization.

53002825621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 53002825621 in words is "fifty-three billion, two million, eight hundred twenty-five thousand, six hundred twenty-one".