18995025 has 48 divisors (see below), whose sum is σ = 36358784. Its totient is φ = 8570880.

The previous prime is 18995021. The next prime is 18995027. The reversal of 18995025 is 52059981.

It is not a de Polignac number, because 18995025 - 2² = 18995021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18995021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50739 + ... + 51111.

Almost surely, 2^18995025 is an apocalyptic number.

18995025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18995025 is a deficient number, since it is larger than the sum of its proper divisors (17363759).

18995025 is a wasteful number, since it uses less digits than its factorization.

18995025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 18995025 is about 4358.3282345413. The cubic root of 18995025 is about 266.8168728423.

The spelling of 18995025 in words is "eighteen million, nine hundred ninety-five thousand, twenty-five".