252503052481 has 4 divisors (see below), whose sum is σ = 252836610772. Its totient is φ = 252169494192.

The previous prime is 252503052469. The next prime is 252503052499. The reversal of 252503052481 is 184250305252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212812451856 + 39690600625 = 461316^2 + 199225^2 .

It is a cyclic number.

It is not a de Polignac number, because 252503052481 - 2⁵ = 252503052449 is a prime.

It is a super-2 number, since 2×252503052481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252503052481.

It is not an unprimeable number, because it can be changed into a prime (252503052401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166778010 + ... + 166779523.

It is an arithmetic number, because the mean of its divisors is an integer number (63209152693).

Almost surely, 2^252503052481 is an apocalyptic number.

It is an amenable number.

252503052481 is a deficient number, since it is larger than the sum of its proper divisors (333558291).

252503052481 is an equidigital number, since it uses as much as digits as its factorization.

252503052481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333558290.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 252503052481 in words is "two hundred fifty-two billion, five hundred three million, fifty-two thousand, four hundred eighty-one".