775252642 has 8 divisors (see below), whose sum is σ = 1167077916. Its totient is φ = 386226672.

The previous prime is 775252637. The next prime is 775252693. The reversal of 775252642 is 246252577.

775252642 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 2 ways, for example, as 772228521 + 3024121 = 27789^2 + 1739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 775252595 and 775252604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699133 + ... + 700240.

Almost surely, 2^775252642 is an apocalyptic number.

775252642 is a deficient number, since it is larger than the sum of its proper divisors (391825274).

775252642 is a wasteful number, since it uses less digits than its factorization.

775252642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399652.

The product of its digits is 235200, while the sum is 40.

The square root of 775252642 is about 27843.3590286804. The cubic root of 775252642 is about 918.6450762558.

The spelling of 775252642 in words is "seven hundred seventy-five million, two hundred fifty-two thousand, six hundred forty-two".