55367971 has 2 divisors, whose sum is σ = 55367972. Its totient is φ = 55367970.

The previous prime is 55367951. The next prime is 55367981. The reversal of 55367971 is 17976355.

55367971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55367971 is a prime.

It is a super-2 number, since 2×55367971² = 6131224425313682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55367911) 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 as a sum of consecutive naturals, namely, 27683985 + 27683986.

It is an arithmetic number, because the mean of its divisors is an integer number (27683986).

Almost surely, 2^55367971 is an apocalyptic number.

55367971 is a deficient number, since it is larger than the sum of its proper divisors (1).

55367971 is an equidigital number, since it uses as much as digits as its factorization.

55367971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 43.

The square root of 55367971 is about 7440.9657303337. The cubic root of 55367971 is about 381.1414684888.

The spelling of 55367971 in words is "fifty-five million, three hundred sixty-seven thousand, nine hundred seventy-one".