2649524257 has 8 divisors (see below), whose sum is σ = 2694172320. Its totient is φ = 2605179360.

The previous prime is 2649524243. The next prime is 2649524287. The reversal of 2649524257 is 7524259462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649524257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2649524287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58132 + ... + 93157.

It is an arithmetic number, because the mean of its divisors is an integer number (336771540).

Almost surely, 2^2649524257 is an apocalyptic number.

It is an amenable number.

2649524257 is a deficient number, since it is larger than the sum of its proper divisors (44648063).

2649524257 is a wasteful number, since it uses less digits than its factorization.

2649524257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151583.

The product of its digits is 1209600, while the sum is 46.

The square root of 2649524257 is about 51473.5296730271. The cubic root of 2649524257 is about 1383.7446878396.

The spelling of 2649524257 in words is "two billion, six hundred forty-nine million, five hundred twenty-four thousand, two hundred fifty-seven".