18025493532 has 24 divisors (see below), whose sum is σ = 43037613696. Its totient is φ = 5868765168.

The previous prime is 18025493531. The next prime is 18025493557. The reversal of 18025493532 is 23539452081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18025493531) 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, 17466048 + ... + 17467079.

It is an arithmetic number, because the mean of its divisors is an integer number (1793233904).

Almost surely, 2^18025493532 is an apocalyptic number.

18025493532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18025493532 is an abundant number, since it is smaller than the sum of its proper divisors (25012120164).

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

18025493532 is a wasteful number, since it uses less digits than its factorization.

18025493532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34933177 (or 34933175 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

It can be divided in two parts, 1802549 and 3532, that added together give a palindrome (1806081).

The spelling of 18025493532 in words is "eighteen billion, twenty-five million, four hundred ninety-three thousand, five hundred thirty-two".