25210112047 has 4 divisors (see below), whose sum is σ = 25349394616. Its totient is φ = 25070829480.

The previous prime is 25210112041. The next prime is 25210112077. The reversal of 25210112047 is 74021101252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25210112047 - 2⁷ = 25210111919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25210112041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69641013 + ... + 69641374.

It is an arithmetic number, because the mean of its divisors is an integer number (6337348654).

Almost surely, 2^25210112047 is an apocalyptic number.

25210112047 is a deficient number, since it is larger than the sum of its proper divisors (139282569).

25210112047 is a wasteful number, since it uses less digits than its factorization.

25210112047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139282568.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 25210112047 its reverse (74021101252), we get a palindrome (99231213299).

The spelling of 25210112047 in words is "twenty-five billion, two hundred ten million, one hundred twelve thousand, forty-seven".