25129539983 has 2 divisors, whose sum is σ = 25129539984. Its totient is φ = 25129539982.

The previous prime is 25129539979. The next prime is 25129540021. The reversal of 25129539983 is 38993592152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25129539983 - 2² = 25129539979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25129539683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12564769991 + 12564769992.

It is an arithmetic number, because the mean of its divisors is an integer number (12564769992).

Almost surely, 2^25129539983 is an apocalyptic number.

25129539983 is a deficient number, since it is larger than the sum of its proper divisors (1).

25129539983 is an equidigital number, since it uses as much as digits as its factorization.

25129539983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5248800, while the sum is 56.

The spelling of 25129539983 in words is "twenty-five billion, one hundred twenty-nine million, five hundred thirty-nine thousand, nine hundred eighty-three".