253631250 has 144 divisors (see below), whose sum is σ = 716579136. Its totient is φ = 67230000.

The previous prime is 253631249. The next prime is 253631269. The reversal of 253631250 is 52136352.

253631250 is a `hidden beast` number, since 2 + 5 + 3 + 631 + 25 + 0 = 666.

253631250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1518667 + ... + 1518833.

It is an arithmetic number, because the mean of its divisors is an integer number (4976244).

Almost surely, 2^253631250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253631250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358289568).

253631250 is an abundant number, since it is smaller than the sum of its proper divisors (462947886).

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

253631250 is an frugal number, since it uses more digits than its factorization.

253631250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 253631250 is about 15925.8045322677. The cubic root of 253631250 is about 632.9959344767.

The spelling of 253631250 in words is "two hundred fifty-three million, six hundred thirty-one thousand, two hundred fifty".