252780055 has 32 divisors (see below), whose sum is σ = 357058368. Its totient is φ = 169728000.

The previous prime is 252780049. The next prime is 252780061. The reversal of 252780055 is 550087252.

252780055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252780049) and next prime (252780061).

It is not a de Polignac number, because 252780055 - 2¹⁷ = 252648983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252780055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47005 + ... + 52105.

It is an arithmetic number, because the mean of its divisors is an integer number (11158074).

Almost surely, 2^252780055 is an apocalyptic number.

252780055 is a deficient number, since it is larger than the sum of its proper divisors (104278313).

252780055 is a wasteful number, since it uses less digits than its factorization.

252780055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 252780055 is about 15899.0583054469. The cubic root of 252780055 is about 632.2870222958.

The spelling of 252780055 in words is "two hundred fifty-two million, seven hundred eighty thousand, fifty-five".