253242025 has 12 divisors (see below), whose sum is σ = 314779084. Its totient is φ = 202104000.

The previous prime is 253241993. The next prime is 253242043. The reversal of 253242025 is 520242352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5368489 + 247873536 = 2317^2 + 15744^2 .

It is not a de Polignac number, because 253242025 - 2⁵ = 253241993 is a prime.

It is a super-2 number, since 2×253242025² = 128263046452201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1506 + ... + 22555.

Almost surely, 2^253242025 is an apocalyptic number.

253242025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253242025 is a deficient number, since it is larger than the sum of its proper divisors (61537059).

253242025 is a wasteful number, since it uses less digits than its factorization.

253242025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24492 (or 24487 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 253242025 is about 15913.5798926577. The cubic root of 253242025 is about 632.6719681129.

Adding to 253242025 its reverse (520242352), we get a palindrome (773484377).

The spelling of 253242025 in words is "two hundred fifty-three million, two hundred forty-two thousand, twenty-five".