25471487983 has 2 divisors, whose sum is σ = 25471487984. Its totient is φ = 25471487982.

The previous prime is 25471487981. The next prime is 25471488011. The reversal of 25471487983 is 38978417452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25471487983 - 2¹ = 25471487981 is a prime.

It is a super-2 number, since 2×25471487983² (a number of 22 digits) contains 22 as substring.

Together with 25471487981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25471487981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12735743991 + 12735743992.

It is an arithmetic number, because the mean of its divisors is an integer number (12735743992).

Almost surely, 2^25471487983 is an apocalyptic number.

25471487983 is a deficient number, since it is larger than the sum of its proper divisors (1).

25471487983 is an equidigital number, since it uses as much as digits as its factorization.

25471487983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 58.

The spelling of 25471487983 in words is "twenty-five billion, four hundred seventy-one million, four hundred eighty-seven thousand, nine hundred eighty-three".