53776773 has 6 divisors (see below), whose sum is σ = 77677574. Its totient is φ = 35851176.

The previous prime is 53776771. The next prime is 53776777. The reversal of 53776773 is 37767735.

It can be written as a sum of positive squares in only one way, i.e., 31337604 + 22439169 = 5598^2 + 4737^2 .

It is not a de Polignac number, because 53776773 - 2¹ = 53776771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53776771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2987590 + ... + 2987607.

Almost surely, 2^53776773 is an apocalyptic number.

It is an amenable number.

53776773 is a deficient number, since it is larger than the sum of its proper divisors (23900801).

53776773 is a wasteful number, since it uses less digits than its factorization.

53776773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5975203 (or 5975200 counting only the distinct ones).

The product of its digits is 648270, while the sum is 45.

The square root of 53776773 is about 7333.2648254376. The cubic root of 53776773 is about 377.4547652771.

The spelling of 53776773 in words is "fifty-three million, seven hundred seventy-six thousand, seven hundred seventy-three".