55774491 has 8 divisors (see below), whose sum is σ = 74752080. Its totient is φ = 36989952.

The previous prime is 55774457. The next prime is 55774507. The reversal of 55774491 is 19447755.

It is a happy number.

55774491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55774491 - 2¹⁵ = 55741723 is a prime.

It is a super-2 number, since 2×55774491² = 6221587692618162, which contains 22 as substring.

55774491 is a Rhonda number in base 14.

It is not an unprimeable number, because it can be changed into a prime (55774441) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 47586 + ... + 48743.

It is an arithmetic number, because the mean of its divisors is an integer number (9344010).

Almost surely, 2^55774491 is an apocalyptic number.

55774491 is a deficient number, since it is larger than the sum of its proper divisors (18977589).

55774491 is a wasteful number, since it uses less digits than its factorization.

55774491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96525.

The product of its digits is 176400, while the sum is 42.

The square root of 55774491 is about 7468.2321201205. The cubic root of 55774491 is about 382.0719942338.

It can be divided in two parts, 55774 and 491, that added together give a palindrome (56265).

The spelling of 55774491 in words is "fifty-five million, seven hundred seventy-four thousand, four hundred ninety-one".