18225575503 has 8 divisors (see below), whose sum is σ = 18250189776. Its totient is φ = 18200980800.

The previous prime is 18225575461. The next prime is 18225575519. The reversal of 18225575503 is 30557552281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18225575503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18225575503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18225572503) 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, 2856625 + ... + 2862997.

It is an arithmetic number, because the mean of its divisors is an integer number (2281273722).

Almost surely, 2^18225575503 is an apocalyptic number.

18225575503 is a deficient number, since it is larger than the sum of its proper divisors (24614273).

18225575503 is a wasteful number, since it uses less digits than its factorization.

18225575503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 18225575503 in words is "eighteen billion, two hundred twenty-five million, five hundred seventy-five thousand, five hundred three".