252777555550 has 48 divisors (see below), whose sum is σ = 506386651680. Its totient is φ = 93323341440.

The previous prime is 252777555469. The next prime is 252777555551. The reversal of 252777555550 is 55555777252.

It is a junction number, because it is equal to n+sod(n) for n = 252777555491 and 252777555500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252777555551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9433071 + ... + 9459829.

It is an arithmetic number, because the mean of its divisors is an integer number (10549721910).

Almost surely, 2^252777555550 is an apocalyptic number.

252777555550 is an abundant number, since it is smaller than the sum of its proper divisors (253609096130).

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

252777555550 is a wasteful number, since it uses less digits than its factorization.

252777555550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41317 (or 41312 counting only the distinct ones).

The product of its (nonzero) digits is 21437500, while the sum is 55.

The spelling of 252777555550 in words is "two hundred fifty-two billion, seven hundred seventy-seven million, five hundred fifty-five thousand, five hundred fifty".