252777925 has 6 divisors (see below), whose sum is σ = 313444658. Its totient is φ = 202222320.

The previous prime is 252777923. The next prime is 252777953. The reversal of 252777925 is 529777252.

It can be written as a sum of positive squares in 3 ways, for example, as 1682209 + 251095716 = 1297^2 + 15846^2 .

It is not a de Polignac number, because 252777925 - 2¹ = 252777923 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 (252777923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5055534 + ... + 5055583.

Almost surely, 2^252777925 is an apocalyptic number.

252777925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252777925 is a deficient number, since it is larger than the sum of its proper divisors (60666733).

252777925 is a wasteful number, since it uses less digits than its factorization.

252777925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111127 (or 10111122 counting only the distinct ones).

The product of its digits is 617400, while the sum is 46.

The square root of 252777925 is about 15898.9913202064. The cubic root of 252777925 is about 632.2852463446.

The spelling of 252777925 in words is "two hundred fifty-two million, seven hundred seventy-seven thousand, nine hundred twenty-five".