258889475 has 12 divisors (see below), whose sum is σ = 345717456. Its totient is φ = 191179680.

The previous prime is 258889469. The next prime is 258889487. The reversal of 258889475 is 574988852.

It is a happy number.

It is not a de Polignac number, because 258889475 - 2¹² = 258885379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258889475.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397967 + ... + 398616.

It is an arithmetic number, because the mean of its divisors is an integer number (28809788).

Almost surely, 2^258889475 is an apocalyptic number.

258889475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

258889475 is a deficient number, since it is larger than the sum of its proper divisors (86827981).

258889475 is a wasteful number, since it uses less digits than its factorization.

258889475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796606 (or 796601 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 56.

The square root of 258889475 is about 16090.0427283460. The cubic root of 258889475 is about 637.3404239831.

The spelling of 258889475 in words is "two hundred fifty-eight million, eight hundred eighty-nine thousand, four hundred seventy-five".