55397941 has 4 divisors (see below), whose sum is σ = 55474252. Its totient is φ = 55321632.

The previous prime is 55397933. The next prime is 55397957. The reversal of 55397941 is 14979355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37088100 + 18309841 = 6090^2 + 4279^2 .

It is a cyclic number.

It is not a de Polignac number, because 55397941 - 2³ = 55397933 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 (55397971) 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, 37056 + ... + 38521.

It is an arithmetic number, because the mean of its divisors is an integer number (13868563).

Almost surely, 2^55397941 is an apocalyptic number.

It is an amenable number.

55397941 is a deficient number, since it is larger than the sum of its proper divisors (76311).

55397941 is an equidigital number, since it uses as much as digits as its factorization.

55397941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76310.

The product of its digits is 170100, while the sum is 43.

The square root of 55397941 is about 7442.9793093895. The cubic root of 55397941 is about 381.2102251437.

The spelling of 55397941 in words is "fifty-five million, three hundred ninety-seven thousand, nine hundred forty-one".