772056566 has 4 divisors (see below), whose sum is σ = 1158084852. Its totient is φ = 386028282.

The previous prime is 772056557. The next prime is 772056599. The reversal of 772056566 is 665650277.

772056566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665650277 = 43 ⋅15480239.

It is a super-2 number, since 2×772056566² = 1192142682207424712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193014140 + ... + 193014143.

It is an arithmetic number, because the mean of its divisors is an integer number (289521213).

Almost surely, 2^772056566 is an apocalyptic number.

772056566 is a deficient number, since it is larger than the sum of its proper divisors (386028286).

772056566 is a wasteful number, since it uses less digits than its factorization.

772056566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386028285.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 772056566 is about 27785.9058876978. The cubic root of 772056566 is about 917.3809277080.

The spelling of 772056566 in words is "seven hundred seventy-two million, fifty-six thousand, five hundred sixty-six".