55567867 has 2 divisors, whose sum is σ = 55567868. Its totient is φ = 55567866.

The previous prime is 55567823. The next prime is 55567879. The reversal of 55567867 is 76876555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55567867 - 2¹⁵ = 55535099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55567867.

It is not a weakly prime, because it can be changed into another prime (55567817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783933 + 27783934.

It is an arithmetic number, because the mean of its divisors is an integer number (27783934).

Almost surely, 2^55567867 is an apocalyptic number.

55567867 is a deficient number, since it is larger than the sum of its proper divisors (1).

55567867 is an equidigital number, since it uses as much as digits as its factorization.

55567867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764000, while the sum is 49.

The square root of 55567867 is about 7454.3857560499. The cubic root of 55567867 is about 381.5995982742.

The spelling of 55567867 in words is "fifty-five million, five hundred sixty-seven thousand, eight hundred sixty-seven".