2757570649 has 2 divisors, whose sum is σ = 2757570650. Its totient is φ = 2757570648.

The previous prime is 2757570631. The next prime is 2757570659. The reversal of 2757570649 is 9460757572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2424873049 + 332697600 = 49243^2 + 18240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2757570649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2757570596 and 2757570605.

It is not a weakly prime, because it can be changed into another prime (2757570619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378785324 + 1378785325.

It is an arithmetic number, because the mean of its divisors is an integer number (1378785325).

Almost surely, 2^2757570649 is an apocalyptic number.

It is an amenable number.

2757570649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757570649 is an equidigital number, since it uses as much as digits as its factorization.

2757570649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The square root of 2757570649 is about 52512.5761032536. The cubic root of 2757570649 is about 1402.3041392390.

The spelling of 2757570649 in words is "two billion, seven hundred fifty-seven million, five hundred seventy thousand, six hundred forty-nine".