253809025 has 24 divisors (see below), whose sum is σ = 333085824. Its totient is φ = 191452800.

The previous prime is 253809019. The next prime is 253809037. The reversal of 253809025 is 520908352.

It is not a de Polignac number, because 253809025 - 2¹¹ = 253806977 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 37717 + ... + 43933.

It is an arithmetic number, because the mean of its divisors is an integer number (13878576).

Almost surely, 2^253809025 is an apocalyptic number.

253809025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253809025 is a deficient number, since it is larger than the sum of its proper divisors (79276799).

253809025 is a wasteful number, since it uses less digits than its factorization.

253809025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321 (or 6316 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 253809025 is about 15931.3849052742. The cubic root of 253809025 is about 633.1437929271.

The spelling of 253809025 in words is "two hundred fifty-three million, eight hundred nine thousand, twenty-five".