25472733538857 has 32 divisors (see below), whose sum is σ = 39231117535104. Its totient is φ = 14529759436800.

The previous prime is 25472733538831. The next prime is 25472733538927. The reversal of 25472733538857 is 75883533727452.

It is not a de Polignac number, because 25472733538857 - 2⁷ = 25472733538729 is a prime.

It is a super-2 number, since 2×25472733538857² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25472733538791 and 25472733538800.

It is not an unprimeable number, because it can be changed into a prime (25472733539857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89537757 + ... + 89821797.

It is an arithmetic number, because the mean of its divisors is an integer number (1225972422972).

Almost surely, 2^{25472733538857} is an apocalyptic number.

It is an amenable number.

25472733538857 is a deficient number, since it is larger than the sum of its proper divisors (13758383996247).

25472733538857 is a wasteful number, since it uses less digits than its factorization.

25472733538857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443929.

The product of its digits is 1185408000, while the sum is 69.

The spelling of 25472733538857 in words is "twenty-five trillion, four hundred seventy-two billion, seven hundred thirty-three million, five hundred thirty-eight thousand, eight hundred fifty-seven".