252678081597 has 4 divisors (see below), whose sum is σ = 336904108800. Its totient is φ = 168452054396.

The previous prime is 252678081589. The next prime is 252678081637. The reversal of 252678081597 is 795180876252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252678081597 - 2³ = 252678081589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252678081597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252678081547) 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, 42113013597 + ... + 42113013602.

It is an arithmetic number, because the mean of its divisors is an integer number (84226027200).

Almost surely, 2^252678081597 is an apocalyptic number.

It is an amenable number.

252678081597 is a deficient number, since it is larger than the sum of its proper divisors (84226027203).

252678081597 is an equidigital number, since it uses as much as digits as its factorization.

252678081597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84226027202.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 252678081597 in words is "two hundred fifty-two billion, six hundred seventy-eight million, eighty-one thousand, five hundred ninety-seven".