18757625 has 8 divisors (see below), whose sum is σ = 23409672. Its totient is φ = 15006000.

The previous prime is 18757597. The next prime is 18757637. The reversal of 18757625 is 52675781.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 18757561 = 8^2 + 4331^2 .

It is not a de Polignac number, because 18757625 - 2⁸ = 18757369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74906 + ... + 75155.

It is an arithmetic number, because the mean of its divisors is an integer number (2926209).

Almost surely, 2^18757625 is an apocalyptic number.

It is an amenable number.

18757625 is a deficient number, since it is larger than the sum of its proper divisors (4652047).

18757625 is an equidigital number, since it uses as much as digits as its factorization.

18757625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150076 (or 150066 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 18757625 is about 4331.0073885876. The cubic root of 18757625 is about 265.7006497333.

The spelling of 18757625 in words is "eighteen million, seven hundred fifty-seven thousand, six hundred twenty-five".