25532372500 has 60 divisors (see below), whose sum is σ = 55872390112. Its totient is φ = 10205964000.

The previous prime is 25532372497. The next prime is 25532372507. The reversal of 25532372500 is 527323552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25532372507) 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 19 ways as a sum of consecutive naturals, for example, 5205049 + ... + 5209951.

Almost surely, 2^25532372500 is an apocalyptic number.

25532372500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25532372500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27936195056).

25532372500 is an abundant number, since it is smaller than the sum of its proper divisors (30340017612).

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

25532372500 is a wasteful number, since it uses less digits than its factorization.

25532372500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7010 (or 6993 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 34.

The spelling of 25532372500 in words is "twenty-five billion, five hundred thirty-two million, three hundred seventy-two thousand, five hundred".