55306899 has 24 divisors (see below), whose sum is σ = 85018752. Its totient is φ = 34525440.

The previous prime is 55306859. The next prime is 55306907. The reversal of 55306899 is 99860355.

55306899 is a `hidden beast` number, since 553 + 0 + 6 + 8 + 99 = 666.

It is not a de Polignac number, because 55306899 - 2¹³ = 55298707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55306819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33309 + ... + 34929.

It is an arithmetic number, because the mean of its divisors is an integer number (3542448).

Almost surely, 2^55306899 is an apocalyptic number.

55306899 is a deficient number, since it is larger than the sum of its proper divisors (29711853).

55306899 is a wasteful number, since it uses less digits than its factorization.

55306899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 55306899 is about 7436.8608296781. The cubic root of 55306899 is about 381.0012813316.

The spelling of 55306899 in words is "fifty-five million, three hundred six thousand, eight hundred ninety-nine".