253855825 has 12 divisors (see below), whose sum is σ = 314979840. Its totient is φ = 202956560.

The previous prime is 253855817. The next prime is 253855829. The reversal of 253855825 is 528558352.

It is not a de Polignac number, because 253855825 - 2³ = 253855817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253855829) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 70212 + ... + 73738.

It is an arithmetic number, because the mean of its divisors is an integer number (26248320).

Almost surely, 2^253855825 is an apocalyptic number.

253855825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253855825 is a deficient number, since it is larger than the sum of its proper divisors (61124015).

253855825 is a wasteful number, since it uses less digits than its factorization.

253855825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416 (or 6411 counting only the distinct ones).

The product of its digits is 480000, while the sum is 43.

The square root of 253855825 is about 15932.8536364331. The cubic root of 253855825 is about 633.1827057914.

The spelling of 253855825 in words is "two hundred fifty-three million, eight hundred fifty-five thousand, eight hundred twenty-five".