253687225 has 12 divisors (see below), whose sum is σ = 343170000. Its totient is φ = 184499600.

The previous prime is 253687211. The next prime is 253687271. The reversal of 253687225 is 522786352.

It is not a de Polignac number, because 253687225 - 2¹¹ = 253685177 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460975 + ... + 461524.

It is an arithmetic number, because the mean of its divisors is an integer number (28597500).

Almost surely, 2^253687225 is an apocalyptic number.

253687225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253687225 is a deficient number, since it is larger than the sum of its proper divisors (89482775).

253687225 is a wasteful number, since it uses less digits than its factorization.

253687225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922520 (or 922515 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 253687225 is about 15927.5618033646. The cubic root of 253687225 is about 633.0424972737.

The spelling of 253687225 in words is "two hundred fifty-three million, six hundred eighty-seven thousand, two hundred twenty-five".