25542500847 has 8 divisors (see below), whose sum is σ = 34407767856. Its totient is φ = 16852783872.

The previous prime is 25542500807. The next prime is 25542500849. The reversal of 25542500847 is 74800524552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25542500847 - 2¹⁰ = 25542499823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25542500799 and 25542500808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542500849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43887168 + ... + 43887749.

It is an arithmetic number, because the mean of its divisors is an integer number (4300970982).

Almost surely, 2^25542500847 is an apocalyptic number.

25542500847 is a deficient number, since it is larger than the sum of its proper divisors (8865267009).

25542500847 is an equidigital number, since it uses as much as digits as its factorization.

25542500847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87775017.

The product of its (nonzero) digits is 448000, while the sum is 42.

The spelling of 25542500847 in words is "twenty-five billion, five hundred forty-two million, five hundred thousand, eight hundred forty-seven".