253615025 has 6 divisors (see below), whose sum is σ = 314482662. Its totient is φ = 202892000.

The previous prime is 253614973. The next prime is 253615039. The reversal of 253615025 is 520516352.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8254129 + 245360896 = 2873^2 + 15664^2 .

It is not a de Polignac number, because 253615025 - 2¹⁰ = 253614001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5072276 + ... + 5072325.

It is an arithmetic number, because the mean of its divisors is an integer number (52413777).

Almost surely, 2^253615025 is an apocalyptic number.

253615025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253615025 is a deficient number, since it is larger than the sum of its proper divisors (60867637).

253615025 is a wasteful number, since it uses less digits than its factorization.

253615025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144611 (or 10144606 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 253615025 is about 15925.2951307032. The cubic root of 253615025 is about 632.9824364317.

The spelling of 253615025 in words is "two hundred fifty-three million, six hundred fifteen thousand, twenty-five".