18625541 has 8 divisors (see below), whose sum is σ = 20868384. Its totient is φ = 16474320.

The previous prime is 18625517. The next prime is 18625549. The reversal of 18625541 is 14552681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18625541 - 2¹⁰ = 18624517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18625498 and 18625507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18625549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22475 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (2608548).

Almost surely, 2^18625541 is an apocalyptic number.

18625541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18625541 is a deficient number, since it is larger than the sum of its proper divisors (2242843).

18625541 is a wasteful number, since it uses less digits than its factorization.

18625541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45811.

The product of its digits is 9600, while the sum is 32.

The square root of 18625541 is about 4315.7318035300. The cubic root of 18625541 is about 265.0755261172.

The spelling of 18625541 in words is "eighteen million, six hundred twenty-five thousand, five hundred forty-one".