252030055 has 4 divisors (see below), whose sum is σ = 302436072. Its totient is φ = 201624040.

The previous prime is 252030043. The next prime is 252030071. The reversal of 252030055 is 550030252.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-252030055 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25203001 + ... + 25203010.

It is an arithmetic number, because the mean of its divisors is an integer number (75609018).

Almost surely, 2^252030055 is an apocalyptic number.

252030055 is a deficient number, since it is larger than the sum of its proper divisors (50406017).

252030055 is an equidigital number, since it uses as much as digits as its factorization.

252030055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50406016.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 252030055 is about 15875.4544816834. The cubic root of 252030055 is about 631.6610696388.

The spelling of 252030055 in words is "two hundred fifty-two million, thirty thousand, fifty-five".