253570025 has 6 divisors (see below), whose sum is σ = 314426862. Its totient is φ = 202856000.

The previous prime is 253570021. The next prime is 253570033. The reversal of 253570025 is 520075352.

It can be written as a sum of positive squares in 3 ways, for example, as 29888089 + 223681936 = 5467^2 + 14956^2 .

It is not a de Polignac number, because 253570025 - 2² = 253570021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253570025.

It is not an unprimeable number, because it can be changed into a prime (253570021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5071376 + ... + 5071425.

It is an arithmetic number, because the mean of its divisors is an integer number (52404477).

Almost surely, 2^253570025 is an apocalyptic number.

253570025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253570025 is a deficient number, since it is larger than the sum of its proper divisors (60856837).

253570025 is a wasteful number, since it uses less digits than its factorization.

253570025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142811 (or 10142806 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 253570025 is about 15923.8822213680. The cubic root of 253570025 is about 632.9449966225.

The spelling of 253570025 in words is "two hundred fifty-three million, five hundred seventy thousand, twenty-five".