253643250 has 64 divisors (see below), whose sum is σ = 723550464. Its totient is φ = 57974400.

The previous prime is 253643239. The next prime is 253643267. The reversal of 253643250 is 52346352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18907 + ... + 29406.

It is an arithmetic number, because the mean of its divisors is an integer number (11305476).

Almost surely, 2^253643250 is an apocalyptic number.

253643250 is an abundant number, since it is smaller than the sum of its proper divisors (469907214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253643250 is a wasteful number, since it uses less digits than its factorization.

253643250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48340 (or 48330 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 253643250 is about 15926.1812748694. The cubic root of 253643250 is about 633.0059172521.

The spelling of 253643250 in words is "two hundred fifty-three million, six hundred forty-three thousand, two hundred fifty".