18725050 has 12 divisors (see below), whose sum is σ = 34828686. Its totient is φ = 7490000.

The previous prime is 18725033. The next prime is 18725099. The reversal of 18725050 is 5052781.

It can be written as a sum of positive squares in 3 ways, for example, as 17816841 + 908209 = 4221^2 + 953^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187201 + ... + 187300.

Almost surely, 2^18725050 is an apocalyptic number.

18725050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18725050 is a deficient number, since it is larger than the sum of its proper divisors (16103636).

18725050 is a wasteful number, since it uses less digits than its factorization.

18725050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374513 (or 374508 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 18725050 is about 4327.2450820355. The cubic root of 18725050 is about 265.5467529617.

The spelling of 18725050 in words is "eighteen million, seven hundred twenty-five thousand, fifty".