772255 has 16 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 531360.

The previous prime is 772231. The next prime is 772273. The reversal of 772255 is 552277.

772255 = 391² + 392² + ... + 395².

It is not a de Polignac number, because 772255 - 2⁷ = 772127 is a prime.

772255 is a lucky number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676 + ... + 1414.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

2⁷⁷²²⁵⁵ is an apocalyptic number.

772255 is a deficient number, since it is larger than the sum of its proper divisors (293345).

772255 is a wasteful number, since it uses less digits than its factorization.

772255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 4900, while the sum is 28.

The square root of 772255 is about 878.7804048794. The cubic root of 772255 is about 91.7459516066.

It can be divided in two parts, 7722 and 55, that added together give a palindrome (7777).

The spelling of 772255 in words is "seven hundred seventy-two thousand, two hundred fifty-five".