55308077 has 16 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 47401200.

The previous prime is 55308073. The next prime is 55308079. The reversal of 55308077 is 77080355.

It is not a de Polignac number, because 55308077 - 2² = 55308073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55308073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16424 + ... + 19502.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^55308077 is an apocalyptic number.

It is an amenable number.

55308077 is a deficient number, since it is larger than the sum of its proper divisors (8558803).

55308077 is a wasteful number, since it uses less digits than its factorization.

55308077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 55308077 is about 7436.9400293400. The cubic root of 55308077 is about 381.0039863366.

The spelling of 55308077 in words is "fifty-five million, three hundred eight thousand, seventy-seven".