25473191040 has 960 divisors, whose sum is σ = 104004552960. Its totient is φ = 5930496000.

The previous prime is 25473190999. The next prime is 25473191041. The reversal of 25473191040 is 4019137452.

25473191040 is a `hidden beast` number, since 2 + 547 + 3 + 1 + 9 + 104 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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

It is a junction number, because it is equal to n+sod(n) for n = 25473190986 and 25473191004.

It is not an unprimeable number, because it can be changed into a prime (25473191041) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 194451775 + ... + 194451905.

It is an arithmetic number, because the mean of its divisors is an integer number (108338076).

Almost surely, 2^25473191040 is an apocalyptic number.

25473191040 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 25473191040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52002276480).

25473191040 is an abundant number, since it is smaller than the sum of its proper divisors (78531361920).

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

25473191040 is a wasteful number, since it uses less digits than its factorization.

25473191040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 25473191040 in words is "twenty-five billion, four hundred seventy-three million, one hundred ninety-one thousand, forty".