55198854 has 16 divisors (see below), whose sum is σ = 122664240. Its totient is φ = 18399600.

The previous prime is 55198841. The next prime is 55198889. The reversal of 55198854 is 45889155.

It is a happy number.

55198854 is a `hidden beast` number, since 5 + 519 + 88 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511047 + ... + 511154.

It is an arithmetic number, because the mean of its divisors is an integer number (7666515).

Almost surely, 2^55198854 is an apocalyptic number.

55198854 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55198854 is an abundant number, since it is smaller than the sum of its proper divisors (67465386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55198854 is a wasteful number, since it uses less digits than its factorization.

55198854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022212 (or 1022206 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 55198854 is about 7429.5931247949. The cubic root of 55198854 is about 380.7530174349.

The spelling of 55198854 in words is "fifty-five million, one hundred ninety-eight thousand, eight hundred fifty-four".