18075425 has 12 divisors (see below), whose sum is σ = 23020476. Its totient is φ = 14068800.

The previous prime is 18075413. The next prime is 18075427. The reversal of 18075425 is 52457081.

It can be written as a sum of positive squares in 6 ways, for example, as 38416 + 18037009 = 196^2 + 4247^2 .

It is not a de Polignac number, because 18075425 - 2¹⁶ = 18009889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18075391 and 18075400.

It is not an unprimeable number, because it can be changed into a prime (18075427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8846 + ... + 10695.

It is an arithmetic number, because the mean of its divisors is an integer number (1918373).

Almost surely, 2^18075425 is an apocalyptic number.

It is an amenable number.

18075425 is a deficient number, since it is larger than the sum of its proper divisors (4945051).

18075425 is a wasteful number, since it uses less digits than its factorization.

18075425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19588 (or 19583 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 18075425 is about 4251.5203163104. The cubic root of 18075425 is about 262.4396837987.

The spelling of 18075425 in words is "eighteen million, seventy-five thousand, four hundred twenty-five".