18925063 has 4 divisors (see below), whose sum is σ = 20038320. Its totient is φ = 17811808.

The previous prime is 18925037. The next prime is 18925087. The reversal of 18925063 is 36052981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36052981 = 41 ⋅879341.

It is a cyclic number.

It is not a de Polignac number, because 18925063 - 2¹³ = 18916871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18925663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556603 + ... + 556636.

It is an arithmetic number, because the mean of its divisors is an integer number (5009580).

Almost surely, 2^18925063 is an apocalyptic number.

18925063 is a deficient number, since it is larger than the sum of its proper divisors (1113257).

18925063 is a wasteful number, since it uses less digits than its factorization.

18925063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113256.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 18925063 is about 4350.2945877262. The cubic root of 18925063 is about 266.4888921024.

It can be divided in two parts, 189 and 25063, that added together give a palindrome (25252).

The spelling of 18925063 in words is "eighteen million, nine hundred twenty-five thousand, sixty-three".