55068890 has 16 divisors (see below), whose sum is σ = 99597600. Its totient is φ = 21922320.

The previous prime is 55068857. The next prime is 55068901. The reversal of 55068890 is 9886055.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 10940 + ... + 15159.

It is an arithmetic number, because the mean of its divisors is an integer number (6224850).

Almost surely, 2^55068890 is an apocalyptic number.

55068890 is a deficient number, since it is larger than the sum of its proper divisors (44528710).

55068890 is a wasteful number, since it uses less digits than its factorization.

55068890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26317.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 55068890 is about 7420.8415964768. The cubic root of 55068890 is about 380.4539588569.

The spelling of 55068890 in words is "fifty-five million, sixty-eight thousand, eight hundred ninety".