55367771 has 2 divisors, whose sum is σ = 55367772. Its totient is φ = 55367770.

The previous prime is 55367713. The next prime is 55367773. The reversal of 55367771 is 17776355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55367771 - 2⁶ = 55367707 is a prime.

Together with 55367773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55367773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27683885 + 27683886.

It is an arithmetic number, because the mean of its divisors is an integer number (27683886).

Almost surely, 2^55367771 is an apocalyptic number.

55367771 is a deficient number, since it is larger than the sum of its proper divisors (1).

55367771 is an equidigital number, since it uses as much as digits as its factorization.

55367771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154350, while the sum is 41.

The square root of 55367771 is about 7440.9522912057. The cubic root of 55367771 is about 381.1410095690.

The spelling of 55367771 in words is "fifty-five million, three hundred sixty-seven thousand, seven hundred seventy-one".