252401613536 has 12 divisors (see below), whose sum is σ = 496915676712. Its totient is φ = 126200806752.

The previous prime is 252401613421. The next prime is 252401613599. The reversal of 252401613536 is 635316104252.

It is a self number, because there is not a number n which added to its sum of digits gives 252401613536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3943775180 + ... + 3943775243.

It is an arithmetic number, because the mean of its divisors is an integer number (41409639726).

Almost surely, 2^252401613536 is an apocalyptic number.

It is an amenable number.

252401613536 is a deficient number, since it is larger than the sum of its proper divisors (244514063176).

252401613536 is an equidigital number, since it uses as much as digits as its factorization.

252401613536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887550433 (or 7887550425 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 252401613536 its reverse (635316104252), we get a palindrome (887717717788).

The spelling of 252401613536 in words is "two hundred fifty-two billion, four hundred one million, six hundred thirteen thousand, five hundred thirty-six".