2649493529 has 4 divisors (see below), whose sum is σ = 2649716580. Its totient is φ = 2649270480.

The previous prime is 2649493499. The next prime is 2649493549. The reversal of 2649493529 is 9253949462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388681225 + 2260812304 = 19715^2 + 47548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649493529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2649493549) 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, 92642 + ... + 117819.

It is an arithmetic number, because the mean of its divisors is an integer number (662429145).

Almost surely, 2^2649493529 is an apocalyptic number.

It is an amenable number.

2649493529 is a deficient number, since it is larger than the sum of its proper divisors (223051).

2649493529 is a wasteful number, since it uses less digits than its factorization.

2649493529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223050.

The product of its digits is 4199040, while the sum is 53.

The square root of 2649493529 is about 51473.2311886479. The cubic root of 2649493529 is about 1383.7393384678.

The spelling of 2649493529 in words is "two billion, six hundred forty-nine million, four hundred ninety-three thousand, five hundred twenty-nine".