55877207 has 2 divisors, whose sum is σ = 55877208. Its totient is φ = 55877206.

The previous prime is 55877203. The next prime is 55877251. The reversal of 55877207 is 70277855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55877207 - 2² = 55877203 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55877201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27938603 + 27938604.

It is an arithmetic number, because the mean of its divisors is an integer number (27938604).

Almost surely, 2^55877207 is an apocalyptic number.

55877207 is a deficient number, since it is larger than the sum of its proper divisors (1).

55877207 is an equidigital number, since it uses as much as digits as its factorization.

55877207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 55877207 is about 7475.1058186490. The cubic root of 55877207 is about 382.3063955365.

The spelling of 55877207 in words is "fifty-five million, eight hundred seventy-seven thousand, two hundred seven".