252777205 has 4 divisors (see below), whose sum is σ = 303332652. Its totient is φ = 202221760.

The previous prime is 252777191. The next prime is 252777209. The reversal of 252777205 is 502777252.

252777205 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 can be written as a sum of positive squares in 2 ways, for example, as 146748996 + 106028209 = 12114^2 + 10297^2 .

It is not a de Polignac number, because 252777205 - 2²⁷ = 118559477 is a prime.

It is a super-2 number, since 2×252777205² = 127792630735224050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252777209) 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, 25277716 + ... + 25277725.

It is an arithmetic number, because the mean of its divisors is an integer number (75833163).

Almost surely, 2^252777205 is an apocalyptic number.

It is an amenable number.

252777205 is a deficient number, since it is larger than the sum of its proper divisors (50555447).

252777205 is an equidigital number, since it uses as much as digits as its factorization.

252777205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50555446.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 252777205 is about 15898.9686772444. The cubic root of 252777205 is about 632.2846460208.

The spelling of 252777205 in words is "two hundred fifty-two million, seven hundred seventy-seven thousand, two hundred five".