253557489 has 16 divisors (see below), whose sum is σ = 364553280. Its totient is φ = 156234240.

The previous prime is 253557481. The next prime is 253557509. The reversal of 253557489 is 984755352.

It is not a de Polignac number, because 253557489 - 2³ = 253557481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253557481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51912 + ... + 56585.

It is an arithmetic number, because the mean of its divisors is an integer number (22784580).

Almost surely, 2^253557489 is an apocalyptic number.

It is an amenable number.

253557489 is a deficient number, since it is larger than the sum of its proper divisors (110995791).

253557489 is a wasteful number, since it uses less digits than its factorization.

253557489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108560.

The product of its digits is 1512000, while the sum is 48.

The square root of 253557489 is about 15923.4885938980. The cubic root of 253557489 is about 632.9345659348.

The spelling of 253557489 in words is "two hundred fifty-three million, five hundred fifty-seven thousand, four hundred eighty-nine".