258188425 has 24 divisors (see below), whose sum is σ = 355200480. Its totient is φ = 184579200.

The previous prime is 258188393. The next prime is 258188443. The reversal of 258188425 is 524881852.

258188425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258188425 - 2⁵ = 258188393 is a prime.

It is a super-2 number, since 2×258188425² = 133322525607961250, which contains 22 as substring.

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, 8269 + ... + 24181.

It is an arithmetic number, because the mean of its divisors is an integer number (14800020).

Almost surely, 2^258188425 is an apocalyptic number.

258188425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258188425 is a deficient number, since it is larger than the sum of its proper divisors (97012055).

258188425 is a wasteful number, since it uses less digits than its factorization.

258188425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15993 (or 15988 counting only the distinct ones).

The product of its digits is 204800, while the sum is 43.

The square root of 258188425 is about 16068.2427477307. The cubic root of 258188425 is about 636.7646165950.

It can be divided in two parts, 25818 and 8425, that added together give a palindrome (34243).

The spelling of 258188425 in words is "two hundred fifty-eight million, one hundred eighty-eight thousand, four hundred twenty-five".