252552775278 has 16 divisors (see below), whose sum is σ = 506187152640. Its totient is φ = 84003991416.

The previous prime is 252552775273. The next prime is 252552775297. The reversal of 252552775278 is 872577255252.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252552775273) 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, 45063718 + ... + 45069321.

It is an arithmetic number, because the mean of its divisors is an integer number (31636697040).

Almost surely, 2^252552775278 is an apocalyptic number.

252552775278 is an abundant number, since it is smaller than the sum of its proper divisors (253634377362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252552775278 is a wasteful number, since it uses less digits than its factorization.

252552775278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90133511.

The product of its digits is 27440000, while the sum is 57.

The spelling of 252552775278 in words is "two hundred fifty-two billion, five hundred fifty-two million, seven hundred seventy-five thousand, two hundred seventy-eight".