25590453504 has 288 divisors, whose sum is σ = 85172204544. Its totient is φ = 6626672640.

The previous prime is 25590453479. The next prime is 25590453509. The reversal of 25590453504 is 40535409552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25590453509) 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, 38024112 + ... + 38024784.

Almost surely, 2^25590453504 is an apocalyptic number.

25590453504 is a gapful number since it is divisible by the number (24) 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 25590453504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42586102272).

25590453504 is an abundant number, since it is smaller than the sum of its proper divisors (59581751040).

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

25590453504 is a wasteful number, since it uses less digits than its factorization.

25590453504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 25590453504 in words is "twenty-five billion, five hundred ninety million, four hundred fifty-three thousand, five hundred four".