18494055 has 16 divisors (see below), whose sum is σ = 32878560. Its totient is φ = 9863424.

The previous prime is 18494053. The next prime is 18494057. The reversal of 18494055 is 55049481.

It is an interprime number because it is at equal distance from previous prime (18494053) and next prime (18494057).

It is not a de Polignac number, because 18494055 - 2¹ = 18494053 is a prime.

It is a super-3 number, since 3×18494055³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68362 + ... + 68631.

It is an arithmetic number, because the mean of its divisors is an integer number (2054910).

Almost surely, 2^18494055 is an apocalyptic number.

18494055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18494055 is a deficient number, since it is larger than the sum of its proper divisors (14384505).

18494055 is a wasteful number, since it uses less digits than its factorization.

18494055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137007 (or 137001 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 18494055 is about 4300.4714857792. The cubic root of 18494055 is about 264.4502904118.

The spelling of 18494055 in words is "eighteen million, four hundred ninety-four thousand, fifty-five".