772750625 has 20 divisors (see below), whose sum is σ = 978914772. Its totient is φ = 609696000.

The previous prime is 772750607. The next prime is 772750633. The reversal of 772750625 is 526057277.

772750625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 621853969 + 150896656 = 24937^2 + 12284^2 .

It is not a de Polignac number, because 772750625 - 2⁸ = 772750369 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37157 + ... + 54093.

Almost surely, 2^772750625 is an apocalyptic number.

It is an amenable number.

772750625 is a deficient number, since it is larger than the sum of its proper divisors (206164147).

772750625 is an equidigital number, since it uses as much as digits as its factorization.

772750625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030 (or 17015 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 772750625 is about 27798.3924894948. The cubic root of 772750625 is about 917.6557459943.

The spelling of 772750625 in words is "seven hundred seventy-two million, seven hundred fifty thousand, six hundred twenty-five".