25142972595552 has 144 divisors (see below), whose sum is σ = 81980834487552. Its totient is φ = 7160306584320.

The previous prime is 25142972595511. The next prime is 25142972595553. The reversal of 25142972595552 is 25559527924152.

25142972595552 is a `hidden beast` number, since 2 + 5 + 1 + 4 + 2 + 9 + 72 + 5 + 9 + 5 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 25142972595552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142972595553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19693324 + ... + 20931147.

It is an arithmetic number, because the mean of its divisors is an integer number (569311350608).

Almost surely, 2^{25142972595552} is an apocalyptic number.

It is an amenable number.

25142972595552 is an abundant number, since it is smaller than the sum of its proper divisors (56837861892000).

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

25142972595552 is a wasteful number, since it uses less digits than its factorization.

25142972595552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40624801 (or 40624790 counting only the distinct ones).

The product of its digits is 113400000, while the sum is 63.

The spelling of 25142972595552 in words is "twenty-five trillion, one hundred forty-two billion, nine hundred seventy-two million, five hundred ninety-five thousand, five hundred fifty-two".