53779771 has 4 divisors (see below), whose sum is σ = 53796600. Its totient is φ = 53762944.

The previous prime is 53779769. The next prime is 53779783. The reversal of 53779771 is 17797735.

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

It is a cyclic number.

It is not a de Polignac number, because 53779771 - 2¹ = 53779769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53779871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (13449150).

Almost surely, 2^53779771 is an apocalyptic number.

53779771 is a deficient number, since it is larger than the sum of its proper divisors (16829).

53779771 is a wasteful number, since it uses less digits than its factorization.

53779771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16828.

The product of its digits is 324135, while the sum is 46.

The square root of 53779771 is about 7333.4692335892. The cubic root of 53779771 is about 377.4617793855.

It can be divided in two parts, 537 and 79771, that added together give a palindrome (80308).

The spelling of 53779771 in words is "fifty-three million, seven hundred seventy-nine thousand, seven hundred seventy-one".