276722057 has 2 divisors, whose sum is σ = 276722058. Its totient is φ = 276722056.

The previous prime is 276722029. The next prime is 276722111. The reversal of 276722057 is 750227672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246207481 + 30514576 = 15691^2 + 5524^2 .

It is a cyclic number.

It is not a de Polignac number, because 276722057 - 2¹⁸ = 276459913 is a prime.

It is a super-2 number, since 2×276722057² = 153150193660622498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 276722057.

It is not a weakly prime, because it can be changed into another prime (276722357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138361028 + 138361029.

It is an arithmetic number, because the mean of its divisors is an integer number (138361029).

Almost surely, 2^276722057 is an apocalyptic number.

It is an amenable number.

276722057 is a deficient number, since it is larger than the sum of its proper divisors (1).

276722057 is an equidigital number, since it uses as much as digits as its factorization.

276722057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 276722057 is about 16634.9648932602. The cubic root of 276722057 is about 651.6502893635.

The spelling of 276722057 in words is "two hundred seventy-six million, seven hundred twenty-two thousand, fifty-seven".