55242899 has 16 divisors (see below), whose sum is σ = 60917760. Its totient is φ = 49896000.

The previous prime is 55242871. The next prime is 55242919. The reversal of 55242899 is 99824255.

55242899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55242899 - 2⁸ = 55242643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55242199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41159 + ... + 42479.

It is an arithmetic number, because the mean of its divisors is an integer number (3807360).

Almost surely, 2^55242899 is an apocalyptic number.

55242899 is a deficient number, since it is larger than the sum of its proper divisors (5674861).

55242899 is a wasteful number, since it uses less digits than its factorization.

55242899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

The product of its digits is 259200, while the sum is 44.

The square root of 55242899 is about 7432.5566933593. The cubic root of 55242899 is about 380.8542623395.

The spelling of 55242899 in words is "fifty-five million, two hundred forty-two thousand, eight hundred ninety-nine".