252776525 has 6 divisors (see below), whose sum is σ = 313442922. Its totient is φ = 202221200.

The previous prime is 252776507. The next prime is 252776527. The reversal of 252776525 is 525677252.

It can be written as a sum of positive squares in 3 ways, for example, as 9821956 + 242954569 = 3134^2 + 15587^2 .

It is not a de Polignac number, because 252776525 - 2⁸ = 252776269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252776527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5055506 + ... + 5055555.

It is an arithmetic number, because the mean of its divisors is an integer number (52240487).

Almost surely, 2^252776525 is an apocalyptic number.

252776525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252776525 is a deficient number, since it is larger than the sum of its proper divisors (60666397).

252776525 is a wasteful number, since it uses less digits than its factorization.

252776525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111071 (or 10111066 counting only the distinct ones).

The product of its digits is 294000, while the sum is 41.

The square root of 252776525 is about 15898.9472921952. The cubic root of 252776525 is about 632.2840790473.

The spelling of 252776525 in words is "two hundred fifty-two million, seven hundred seventy-six thousand, five hundred twenty-five".