18245303525 has 12 divisors (see below), whose sum is σ = 22630030752. Its totient is φ = 14592465840.

The previous prime is 18245303501. The next prime is 18245303537. The reversal of 18245303525 is 52530354281.

It is not a de Polignac number, because 18245303525 - 2¹⁴ = 18245287141 is a prime.

It is a super-2 number, since 2×18245303525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 6224 + ... + 191126.

It is an arithmetic number, because the mean of its divisors is an integer number (1885835896).

Almost surely, 2^18245303525 is an apocalyptic number.

It is an amenable number.

18245303525 is a deficient number, since it is larger than the sum of its proper divisors (4384727227).

18245303525 is a wasteful number, since it uses less digits than its factorization.

18245303525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188860 (or 188855 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 18245303525 in words is "eighteen billion, two hundred forty-five million, three hundred three thousand, five hundred twenty-five".