18255950 has 12 divisors (see below), whose sum is σ = 33956160. Its totient is φ = 7302360.

The previous prime is 18255949. The next prime is 18255953. The reversal of 18255950 is 5955281.

It is a self number, because there is not a number n which added to its sum of digits gives 18255950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18255953) 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, 182510 + ... + 182609.

It is an arithmetic number, because the mean of its divisors is an integer number (2829680).

Almost surely, 2^18255950 is an apocalyptic number.

18255950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18255950 is a deficient number, since it is larger than the sum of its proper divisors (15700210).

18255950 is a wasteful number, since it uses less digits than its factorization.

18255950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365131 (or 365126 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 18255950 is about 4272.6982107329. The cubic root of 18255950 is about 263.3104806674.

The spelling of 18255950 in words is "eighteen million, two hundred fifty-five thousand, nine hundred fifty".