5235915778 has 4 divisors (see below), whose sum is σ = 7853873670. Its totient is φ = 2617957888.

The previous prime is 5235915733. The next prime is 5235915781. The reversal of 5235915778 is 8775195325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3245239089 + 1990676689 = 56967^2 + 44617^2 .

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, 1308978943 + ... + 1308978946.

Almost surely, 2^5235915778 is an apocalyptic number.

5235915778 is a deficient number, since it is larger than the sum of its proper divisors (2617957892).

5235915778 is a wasteful number, since it uses less digits than its factorization.

5235915778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617957891.

The product of its digits is 2646000, while the sum is 52.

The square root of 5235915778 is about 72359.6280946772. The cubic root of 5235915778 is about 1736.4577359177.

The spelling of 5235915778 in words is "five billion, two hundred thirty-five million, nine hundred fifteen thousand, seven hundred seventy-eight".