252657356351 has 8 divisors (see below), whose sum is σ = 258040111104. Its totient is φ = 247274896120.

The previous prime is 252657356317. The next prime is 252657356377. The reversal of 252657356351 is 153653756252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252657356351 is a prime.

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 252657356351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252657356251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113786 + ... + 3193896.

It is an arithmetic number, because the mean of its divisors is an integer number (32255013888).

Almost surely, 2^252657356351 is an apocalyptic number.

252657356351 is a deficient number, since it is larger than the sum of its proper divisors (5382754753).

252657356351 is an equidigital number, since it uses as much as digits as its factorization.

252657356351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147261.

The product of its digits is 5670000, while the sum is 50.

The spelling of 252657356351 in words is "two hundred fifty-two billion, six hundred fifty-seven million, three hundred fifty-six thousand, three hundred fifty-one".