18462725 has 6 divisors (see below), whose sum is σ = 22893810. Its totient is φ = 14770160.

The previous prime is 18462713. The next prime is 18462727. The reversal of 18462725 is 52726481.

It can be written as a sum of positive squares in 3 ways, for example, as 763876 + 17698849 = 874^2 + 4207^2 .

It is not a de Polignac number, because 18462725 - 2¹⁰ = 18461701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18462727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369230 + ... + 369279.

It is an arithmetic number, because the mean of its divisors is an integer number (3815635).

Almost surely, 2^18462725 is an apocalyptic number.

It is an amenable number.

18462725 is a deficient number, since it is larger than the sum of its proper divisors (4431085).

18462725 is an equidigital number, since it uses as much as digits as its factorization.

18462725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738519 (or 738514 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 18462725 is about 4296.8273179173. The cubic root of 18462725 is about 264.3008746390.

The spelling of 18462725 in words is "eighteen million, four hundred sixty-two thousand, seven hundred twenty-five".