252400055 has 16 divisors (see below), whose sum is σ = 311641824. Its totient is φ = 196162560.

The previous prime is 252400039. The next prime is 252400061. The reversal of 252400055 is 550004252.

It is not a de Polignac number, because 252400055 - 2⁴ = 252400039 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 252400055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19295 + ... + 29615.

It is an arithmetic number, because the mean of its divisors is an integer number (19477614).

Almost surely, 2^252400055 is an apocalyptic number.

252400055 is a deficient number, since it is larger than the sum of its proper divisors (59241769).

252400055 is a wasteful number, since it uses less digits than its factorization.

252400055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 252400055 is about 15887.1034175522. The cubic root of 252400055 is about 631.9700279209.

The spelling of 252400055 in words is "two hundred fifty-two million, four hundred thousand, fifty-five".