252481156613 has 32 divisors (see below), whose sum is σ = 309788390400. Its totient is φ = 200971933056.

The previous prime is 252481156579. The next prime is 252481156633. The reversal of 252481156613 is 316651184252.

It is a cyclic number.

It is not a de Polignac number, because 252481156613 - 2¹⁶ = 252481091077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252481156633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1502798 + ... + 1662336.

It is an arithmetic number, because the mean of its divisors is an integer number (9680887200).

Almost surely, 2^252481156613 is an apocalyptic number.

It is an amenable number.

252481156613 is a deficient number, since it is larger than the sum of its proper divisors (57307233787).

252481156613 is a wasteful number, since it uses less digits than its factorization.

252481156613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159801.

The product of its digits is 345600, while the sum is 44.

The spelling of 252481156613 in words is "two hundred fifty-two billion, four hundred eighty-one million, one hundred fifty-six thousand, six hundred thirteen".