2721050257 has 2 divisors, whose sum is σ = 2721050258. Its totient is φ = 2721050256.

The previous prime is 2721050231. The next prime is 2721050291. The reversal of 2721050257 is 7520501272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1930372096 + 790678161 = 43936^2 + 28119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721050257 - 2²³ = 2712661649 is a prime.

It is a super-2 number, since 2×2721050257² = 14808229002239532098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2721050207) 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 as a sum of consecutive naturals, namely, 1360525128 + 1360525129.

It is an arithmetic number, because the mean of its divisors is an integer number (1360525129).

Almost surely, 2^2721050257 is an apocalyptic number.

It is an amenable number.

2721050257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721050257 is an equidigital number, since it uses as much as digits as its factorization.

2721050257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 2721050257 is about 52163.6871492037. The cubic root of 2721050257 is about 1396.0860505368.

The spelling of 2721050257 in words is "two billion, seven hundred twenty-one million, fifty thousand, two hundred fifty-seven".