772225544 has 16 divisors (see below), whose sum is σ = 1533095100. Its totient is φ = 363400192.

The previous prime is 772225537. The next prime is 772225549. The reversal of 772225544 is 445522277.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 714920644 + 57304900 = 26738^2 + 7570^2 .

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 772225498 and 772225507.

It is not an unprimeable number, because it can be changed into a prime (772225549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2838929 + ... + 2839200.

Almost surely, 2^772225544 is an apocalyptic number.

It is an amenable number.

772225544 is a deficient number, since it is larger than the sum of its proper divisors (760869556).

772225544 is a wasteful number, since it uses less digits than its factorization.

772225544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678152 (or 5678148 counting only the distinct ones).

The product of its digits is 156800, while the sum is 38.

The square root of 772225544 is about 27788.9464355884. The cubic root of 772225544 is about 917.4478510800.

The spelling of 772225544 in words is "seven hundred seventy-two million, two hundred twenty-five thousand, five hundred forty-four".