253889545 has 24 divisors (see below), whose sum is σ = 377044416. Its totient is φ = 160699968.

The previous prime is 253889527. The next prime is 253889561. The reversal of 253889545 is 545988352.

It is a happy number.

It is not a de Polignac number, because 253889545 - 2¹¹ = 253887497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15547 + ... + 27376.

It is an arithmetic number, because the mean of its divisors is an integer number (15710184).

Almost surely, 2^253889545 is an apocalyptic number.

It is an amenable number.

253889545 is a deficient number, since it is larger than the sum of its proper divisors (123154871).

253889545 is a wasteful number, since it uses less digits than its factorization.

253889545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42961 (or 42948 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The square root of 253889545 is about 15933.9117921495. The cubic root of 253889545 is about 633.2107400448.

The spelling of 253889545 in words is "two hundred fifty-three million, eight hundred eighty-nine thousand, five hundred forty-five".