25472421127 has 4 divisors (see below), whose sum is σ = 25472757816. Its totient is φ = 25472084440.

The previous prime is 25472421113. The next prime is 25472421137. The reversal of 25472421127 is 72112427452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25472421127 - 2¹¹ = 25472419079 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 (25472421137) 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, 3852 + ... + 225742.

It is an arithmetic number, because the mean of its divisors is an integer number (6368189454).

Almost surely, 2^25472421127 is an apocalyptic number.

25472421127 is a deficient number, since it is larger than the sum of its proper divisors (336689).

25472421127 is a wasteful number, since it uses less digits than its factorization.

25472421127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336688.

The product of its digits is 62720, while the sum is 37.

Adding to 25472421127 its reverse (72112427452), we get a palindrome (97584848579).

The spelling of 25472421127 in words is "twenty-five billion, four hundred seventy-two million, four hundred twenty-one thousand, one hundred twenty-seven".