55741891 has 4 divisors (see below), whose sum is σ = 55774872. Its totient is φ = 55708912.

The previous prime is 55741879. The next prime is 55741897. The reversal of 55741891 is 19814755.

It is a happy number.

55741891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55741891 - 2¹¹ = 55739843 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55741897) 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 3 ways as a sum of consecutive naturals, for example, 13810 + ... + 17383.

It is an arithmetic number, because the mean of its divisors is an integer number (13943718).

Almost surely, 2^55741891 is an apocalyptic number.

55741891 is a deficient number, since it is larger than the sum of its proper divisors (32981).

55741891 is a wasteful number, since it uses less digits than its factorization.

55741891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32980.

The product of its digits is 50400, while the sum is 40.

The square root of 55741891 is about 7466.0492229827. The cubic root of 55741891 is about 381.9975397994.

The spelling of 55741891 in words is "fifty-five million, seven hundred forty-one thousand, eight hundred ninety-one".