253344332557 has 8 divisors (see below), whose sum is σ = 257550687800. Its totient is φ = 249157866240.

The previous prime is 253344332539. The next prime is 253344332569. The reversal of 253344332557 is 755233443352.

It can be written as a sum of positive squares in 4 ways, for example, as 39783892681 + 213560439876 = 199459^2 + 462126^2 .

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-253344332557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253344332537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4946544 + ... + 4997497.

It is an arithmetic number, because the mean of its divisors is an integer number (32193835975).

Almost surely, 2^253344332557 is an apocalyptic number.

It is an amenable number.

253344332557 is a deficient number, since it is larger than the sum of its proper divisors (4206355243).

253344332557 is an equidigital number, since it uses as much as digits as its factorization.

253344332557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944463.

The product of its digits is 4536000, while the sum is 46.

The spelling of 253344332557 in words is "two hundred fifty-three billion, three hundred forty-four million, three hundred thirty-two thousand, five hundred fifty-seven".