18925056 has 120 divisors (see below), whose sum is σ = 57574440. Its totient is φ = 6137856.

The previous prime is 18925037. The next prime is 18925087. The reversal of 18925056 is 65052981.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 18925056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511470 + ... + 511506.

It is an arithmetic number, because the mean of its divisors is an integer number (479787).

Almost surely, 2^18925056 is an apocalyptic number.

18925056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18925056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28787220).

18925056 is an abundant number, since it is smaller than the sum of its proper divisors (38649384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18925056 is an frugal number, since it uses more digits than its factorization.

18925056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 18925056 is about 4350.2937831829. The cubic root of 18925056 is about 266.4888592461.

Multiplying 18925056 by its product of nonzero digits (21600), we get a square (408781209600 = 639360²).

The spelling of 18925056 in words is "eighteen million, nine hundred twenty-five thousand, fifty-six".