55327897 has 4 divisors (see below), whose sum is σ = 55391440. Its totient is φ = 55264356.

The previous prime is 55327891. The next prime is 55327933. The reversal of 55327897 is 79872355.

55327897 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55327897 is a prime.

It is a super-2 number, since 2×55327897² = 6122352372885218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55327891) 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, 30447 + ... + 32212.

It is an arithmetic number, because the mean of its divisors is an integer number (13847860).

Almost surely, 2^55327897 is an apocalyptic number.

It is an amenable number.

55327897 is a deficient number, since it is larger than the sum of its proper divisors (63543).

55327897 is an equidigital number, since it uses as much as digits as its factorization.

55327897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63542.

The product of its digits is 529200, while the sum is 46.

The square root of 55327897 is about 7438.2724472824. The cubic root of 55327897 is about 381.0494926325.

The spelling of 55327897 in words is "fifty-five million, three hundred twenty-seven thousand, eight hundred ninety-seven".