252578236397 has 16 divisors (see below), whose sum is σ = 255406694400. Its totient is φ = 249764336640.

The previous prime is 252578236367. The next prime is 252578236439. The reversal of 252578236397 is 793632875252.

It is not a de Polignac number, because 252578236397 - 2³⁴ = 235398367213 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 (252578236307) 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 15 ways as a sum of consecutive naturals, for example, 58887629 + ... + 58891917.

It is an arithmetic number, because the mean of its divisors is an integer number (15962918400).

Almost surely, 2^252578236397 is an apocalyptic number.

It is an amenable number.

252578236397 is a deficient number, since it is larger than the sum of its proper divisors (2828458003).

252578236397 is a wasteful number, since it uses less digits than its factorization.

252578236397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836.

The product of its digits is 38102400, while the sum is 59.

The spelling of 252578236397 in words is "two hundred fifty-two billion, five hundred seventy-eight million, two hundred thirty-six thousand, three hundred ninety-seven".