252555025278 has 16 divisors (see below), whose sum is σ = 518761674000. Its totient is φ = 81909737856.

The previous prime is 252555025277. The next prime is 252555025379. The reversal of 252555025278 is 872520555252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252555025277) 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, 568817403 + ... + 568817846.

It is an arithmetic number, because the mean of its divisors is an integer number (32422604625).

Almost surely, 2^252555025278 is an apocalyptic number.

252555025278 is an abundant number, since it is smaller than the sum of its proper divisors (266206648722).

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

252555025278 is a wasteful number, since it uses less digits than its factorization.

252555025278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137635291.

The product of its (nonzero) digits is 2800000, while the sum is 48.

The spelling of 252555025278 in words is "two hundred fifty-two billion, five hundred fifty-five million, twenty-five thousand, two hundred seventy-eight".