775230538 has 4 divisors (see below), whose sum is σ = 1162845810. Its totient is φ = 387615268.

The previous prime is 775230503. The next prime is 775230553. The reversal of 775230538 is 835032577.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835032577 = 19 ⋅43949083.

It can be written as a sum of positive squares in only one way, i.e., 758066089 + 17164449 = 27533^2 + 4143^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 775230538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193807633 + ... + 193807636.

Almost surely, 2^775230538 is an apocalyptic number.

775230538 is a deficient number, since it is larger than the sum of its proper divisors (387615272).

775230538 is a wasteful number, since it uses less digits than its factorization.

775230538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387615271.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 775230538 is about 27842.9620909845. The cubic root of 775230538 is about 918.6363453713.

The spelling of 775230538 in words is "seven hundred seventy-five million, two hundred thirty thousand, five hundred thirty-eight".