25044493500 has 288 divisors, whose sum is σ = 90093040128. Its totient is φ = 5801932800.

The previous prime is 25044493471. The next prime is 25044493547. The reversal of 25044493500 is 539444052.

It is a happy number.

25044493500 is a `hidden beast` number, since 25 + 0 + 4 + 44 + 93 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 981909 + ... + 1007091.

It is an arithmetic number, because the mean of its divisors is an integer number (312823056).

Almost surely, 2^25044493500 is an apocalyptic number.

25044493500 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 25044493500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45046520064).

25044493500 is an abundant number, since it is smaller than the sum of its proper divisors (65048546628).

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

25044493500 is a wasteful number, since it uses less digits than its factorization.

25044493500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25238 (or 25223 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25044493500 in words is "twenty-five billion, forty-four million, four hundred ninety-three thousand, five hundred".