25452003780 has 576 divisors, whose sum is σ = 97498791936. Its totient is φ = 5246208000.

The previous prime is 25452003779. The next prime is 25452003827. The reversal of 25452003780 is 8730025452.

25452003780 is a `hidden beast` number, since 2 + 54 + 520 + 0 + 3 + 7 + 80 = 666.

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

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 191 ways as a sum of consecutive naturals, for example, 36833235 + ... + 36833925.

It is an arithmetic number, because the mean of its divisors is an integer number (169268736).

Almost surely, 2^25452003780 is an apocalyptic number.

25452003780 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 25452003780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48749395968).

25452003780 is an abundant number, since it is smaller than the sum of its proper divisors (72046788156).

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

25452003780 is a wasteful number, since it uses less digits than its factorization.

25452003780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 25452003780 in words is "twenty-five billion, four hundred fifty-two million, three thousand, seven hundred eighty".