2529645993 has 12 divisors (see below), whose sum is σ = 4175923648. Its totient is φ = 1445511960.

The previous prime is 2529645971. The next prime is 2529646001. The reversal of 2529645993 is 3995469252.

It is a happy number.

2529645993 is a `hidden beast` number, since 2 + 529 + 64 + 59 + 9 + 3 = 666.

It is not a de Polignac number, because 2529645993 - 2⁶ = 2529645929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2529645493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20076493 + ... + 20076618.

Almost surely, 2^2529645993 is an apocalyptic number.

It is an amenable number.

2529645993 is a deficient number, since it is larger than the sum of its proper divisors (1646277655).

2529645993 is a wasteful number, since it uses less digits than its factorization.

2529645993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40153124 (or 40153121 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 2529645993 is about 50295.5862178780. The cubic root of 2529645993 is about 1362.5525147450.

It can be divided in two parts, 25296 and 45993, that added together give a square (71289 = 267²).

The spelling of 2529645993 in words is "two billion, five hundred twenty-nine million, six hundred forty-five thousand, nine hundred ninety-three".