25472874420 has 576 divisors, whose sum is σ = 95764032000. Its totient is φ = 5468682240.

The previous prime is 25472874403. The next prime is 25472874421. The reversal of 25472874420 is 2447827452.

25472874420 is a `hidden beast` number, since 2 + 547 + 2 + 87 + 4 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25472874421) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 73408687 + ... + 73409033.

It is an arithmetic number, because the mean of its divisors is an integer number (166257000).

Almost surely, 2^25472874420 is an apocalyptic number.

25472874420 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 25472874420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47882016000).

25472874420 is an abundant number, since it is smaller than the sum of its proper divisors (70291157580).

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

25472874420 is a wasteful number, since it uses less digits than its factorization.

25472874420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 45.

The spelling of 25472874420 in words is "twenty-five billion, four hundred seventy-two million, eight hundred seventy-four thousand, four hundred twenty".