25018182532 has 96 divisors (see below), whose sum is σ = 54344908800. Its totient is φ = 9833230848.

The previous prime is 25018182529. The next prime is 25018182533. The reversal of 25018182532 is 23528181052.

It is a junction number, because it is equal to n+sod(n) for n = 25018182491 and 25018182500.

It is not an unprimeable number, because it can be changed into a prime (25018182533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5344569 + ... + 5349247.

It is an arithmetic number, because the mean of its divisors is an integer number (566092800).

Almost surely, 2^25018182532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25018182532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27172454400).

25018182532 is an abundant number, since it is smaller than the sum of its proper divisors (29326726268).

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

25018182532 is a wasteful number, since it uses less digits than its factorization.

25018182532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 25018182532 in words is "twenty-five billion, eighteen million, one hundred eighty-two thousand, five hundred thirty-two".