18058425 has 96 divisors (see below), whose sum is σ = 38568960. Its totient is φ = 7238400.

The previous prime is 18058363. The next prime is 18058459. The reversal of 18058425 is 52485081.

It is not a de Polignac number, because 18058425 - 2⁶ = 18058361 is a prime.

It is a super-2 number, since 2×18058425² = 652213426961250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 306046 + ... + 306104.

It is an arithmetic number, because the mean of its divisors is an integer number (401760).

Almost surely, 2^18058425 is an apocalyptic number.

18058425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18058425 is an abundant number, since it is smaller than the sum of its proper divisors (20510535).

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

18058425 is a wasteful number, since it uses less digits than its factorization.

18058425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 18058425 is about 4249.5205611928. The cubic root of 18058425 is about 262.3573828471.

The spelling of 18058425 in words is "eighteen million, fifty-eight thousand, four hundred twenty-five".