25474883616 has 864 divisors, whose sum is σ = 97354595520. Its totient is φ = 6490036224.

The previous prime is 25474883597. The next prime is 25474883633. The reversal of 25474883616 is 61638847452.

It is a happy number.

25474883616 is a `hidden beast` number, since 2 + 547 + 4 + 8 + 83 + 6 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 143 ways as a sum of consecutive naturals, for example, 183272475 + ... + 183272613.

It is an arithmetic number, because the mean of its divisors is an integer number (112678930).

Almost surely, 2^25474883616 is an apocalyptic number.

25474883616 is a gapful number since it is divisible by the number (26) 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 25474883616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48677297760).

25474883616 is an abundant number, since it is smaller than the sum of its proper divisors (71879711904).

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

25474883616 is a wasteful number, since it uses less digits than its factorization.

25474883616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 201 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 25474883616 in words is "twenty-five billion, four hundred seventy-four million, eight hundred eighty-three thousand, six hundred sixteen".