2529649823 has 2 divisors, whose sum is σ = 2529649824. Its totient is φ = 2529649822.

The previous prime is 2529649777. The next prime is 2529649877. The reversal of 2529649823 is 3289469252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2529649823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2529649883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264824911 + 1264824912.

It is an arithmetic number, because the mean of its divisors is an integer number (1264824912).

Almost surely, 2^2529649823 is an apocalyptic number.

2529649823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2529649823 is an equidigital number, since it uses as much as digits as its factorization.

2529649823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The square root of 2529649823 is about 50295.6242927752. The cubic root of 2529649823 is about 1362.5532024003.

The spelling of 2529649823 in words is "two billion, five hundred twenty-nine million, six hundred forty-nine thousand, eight hundred twenty-three".