55455877 has 2 divisors, whose sum is σ = 55455878. Its totient is φ = 55455876.

The previous prime is 55455847. The next prime is 55455919. The reversal of 55455877 is 77855455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37933281 + 17522596 = 6159^2 + 4186^2 .

It is a cyclic number.

It is not a de Polignac number, because 55455877 - 2¹⁹ = 54931589 is a prime.

It is a super-3 number, since 3×55455877³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55455847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27727938 + 27727939.

It is an arithmetic number, because the mean of its divisors is an integer number (27727939).

Almost surely, 2^55455877 is an apocalyptic number.

It is an amenable number.

55455877 is a deficient number, since it is larger than the sum of its proper divisors (1).

55455877 is an equidigital number, since it uses as much as digits as its factorization.

55455877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 980000, while the sum is 46.

The square root of 55455877 is about 7446.8702822058. The cubic root of 55455877 is about 381.3430706398.

The spelling of 55455877 in words is "fifty-five million, four hundred fifty-five thousand, eight hundred seventy-seven".