775500401 has 16 divisors (see below), whose sum is σ = 843435600. Its totient is φ = 708784128.

The previous prime is 775500379. The next prime is 775500421. The reversal of 775500401 is 104005577.

775500401 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 8 ways, for example, as 107329600 + 668170801 = 10360^2 + 25849^2 .

It is not a de Polignac number, because 775500401 - 2⁶ = 775500337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (775500421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834305 + ... + 835233.

It is an arithmetic number, because the mean of its divisors is an integer number (52714725).

Almost surely, 2^775500401 is an apocalyptic number.

It is an amenable number.

775500401 is a deficient number, since it is larger than the sum of its proper divisors (67935199).

775500401 is a wasteful number, since it uses less digits than its factorization.

775500401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 775500401 is about 27847.8078311382. The cubic root of 775500401 is about 918.7429275159.

Adding to 775500401 its reverse (104005577), we get a palindrome (879505978).

The spelling of 775500401 in words is "seven hundred seventy-five million, five hundred thousand, four hundred one".