252205851 has 4 divisors (see below), whose sum is σ = 336274472. Its totient is φ = 168137232.

The previous prime is 252205847. The next prime is 252205859. The reversal of 252205851 is 158502252.

252205851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 252205851 - 2² = 252205847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252205859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42034306 + ... + 42034311.

It is an arithmetic number, because the mean of its divisors is an integer number (84068618).

Almost surely, 2^252205851 is an apocalyptic number.

252205851 is a deficient number, since it is larger than the sum of its proper divisors (84068621).

252205851 is an equidigital number, since it uses as much as digits as its factorization.

252205851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84068620.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 252205851 is about 15880.9902399063. The cubic root of 252205851 is about 631.8079009113.

The spelling of 252205851 in words is "two hundred fifty-two million, two hundred five thousand, eight hundred fifty-one".