53213444505625 has 10 divisors (see below), whose sum is σ = 66495520255010. Its totient is φ = 42570755604000.

The previous prime is 53213444505607. The next prime is 53213444505631. The reversal of 53213444505625 is 52650544431235.

It can be written as a sum of positive squares in 5 ways, for example, as 26242342161984 + 26971102343641 = 5122728^2 + 5193371^2 .

It is not a de Polignac number, because 53213444505625 - 2⁷ = 53213444505497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42570754980 + ... + 42570756229.

It is an arithmetic number, because the mean of its divisors is an integer number (6649552025501).

Almost surely, 2^{53213444505625} is an apocalyptic number.

It is an amenable number.

53213444505625 is a deficient number, since it is larger than the sum of its proper divisors (13282075749385).

53213444505625 is an frugal number, since it uses more digits than its factorization.

53213444505625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85141511229 (or 85141511214 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 49.

The spelling of 53213444505625 in words is "fifty-three trillion, two hundred thirteen billion, four hundred forty-four million, five hundred five thousand, six hundred twenty-five".