252780255550 has 24 divisors (see below), whose sum is σ = 470463638400. Its totient is φ = 101049228480.

The previous prime is 252780255509. The next prime is 252780255557. The reversal of 252780255550 is 55552087252.

It is a self number, because there is not a number n which added to its sum of digits gives 252780255550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780255557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1490590 + ... + 1651489.

It is an arithmetic number, because the mean of its divisors is an integer number (19602651600).

Almost surely, 2^252780255550 is an apocalyptic number.

252780255550 is a deficient number, since it is larger than the sum of its proper divisors (217683382850).

252780255550 is a wasteful number, since it uses less digits than its factorization.

252780255550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143700 (or 3143695 counting only the distinct ones).

The product of its (nonzero) digits is 1400000, while the sum is 46.

The spelling of 252780255550 in words is "two hundred fifty-two billion, seven hundred eighty million, two hundred fifty-five thousand, five hundred fifty".