18025049 has 8 divisors (see below), whose sum is σ = 21811968. Its totient is φ = 14541120.

The previous prime is 18025019. The next prime is 18025061. The reversal of 18025049 is 94052081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18025049 - 2⁸ = 18024793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18025019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75617 + ... + 75854.

It is an arithmetic number, because the mean of its divisors is an integer number (2726496).

Almost surely, 2^18025049 is an apocalyptic number.

It is an amenable number.

18025049 is a deficient number, since it is larger than the sum of its proper divisors (3786919).

18025049 is a wasteful number, since it uses less digits than its factorization.

18025049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151495.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 18025049 is about 4245.5917137662. The cubic root of 18025049 is about 262.1956515006.

The spelling of 18025049 in words is "eighteen million, twenty-five thousand, forty-nine".