55867771 has 4 divisors (see below), whose sum is σ = 58808200. Its totient is φ = 52927344.

The previous prime is 55867753. The next prime is 55867781. The reversal of 55867771 is 17776855.

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 55867771 - 2²³ = 47479163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55867711) 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, 1470186 + ... + 1470223.

It is an arithmetic number, because the mean of its divisors is an integer number (14702050).

Almost surely, 2^55867771 is an apocalyptic number.

55867771 is a deficient number, since it is larger than the sum of its proper divisors (2940429).

55867771 is a wasteful number, since it uses less digits than its factorization.

55867771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940428.

The product of its digits is 411600, while the sum is 46.

The square root of 55867771 is about 7474.4746303670. The cubic root of 55867771 is about 382.2848742614.

The spelling of 55867771 in words is "fifty-five million, eight hundred sixty-seven thousand, seven hundred seventy-one".