253875870 has 160 divisors (see below), whose sum is σ = 721039968. Its totient is φ = 64012032.

The previous prime is 253875859. The next prime is 253875887. The reversal of 253875870 is 78578352.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1288612 + ... + 1288808.

Almost surely, 2^253875870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253875870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360519984).

253875870 is an abundant number, since it is smaller than the sum of its proper divisors (467164098).

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

253875870 is a wasteful number, since it uses less digits than its factorization.

253875870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 253875870 is about 15933.4826701509. The cubic root of 253875870 is about 633.1993711740.

The spelling of 253875870 in words is "two hundred fifty-three million, eight hundred seventy-five thousand, eight hundred seventy".