252909278575 has 24 divisors (see below), whose sum is σ = 324778657280. Its totient is φ = 195162760800.

The previous prime is 252909278561. The next prime is 252909278581. The reversal of 252909278575 is 575872909252.

It is not a de Polignac number, because 252909278575 - 2¹¹ = 252909276527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293565 + ... + 769414.

Almost surely, 2^252909278575 is an apocalyptic number.

252909278575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252909278575 is a deficient number, since it is larger than the sum of its proper divisors (71869378705).

252909278575 is a wasteful number, since it uses less digits than its factorization.

252909278575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063327 (or 1063322 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 61.

The spelling of 252909278575 in words is "two hundred fifty-two billion, nine hundred nine million, two hundred seventy-eight thousand, five hundred seventy-five".