55459194 has 32 divisors (see below), whose sum is σ = 131137920. Its totient is φ = 15298752.

The previous prime is 55459181. The next prime is 55459199. The reversal of 55459194 is 49195455.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55459199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21549 + ... + 23984.

It is an arithmetic number, because the mean of its divisors is an integer number (4098060).

Almost surely, 2^55459194 is an apocalyptic number.

55459194 is an abundant number, since it is smaller than the sum of its proper divisors (75678726).

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

55459194 is a wasteful number, since it uses less digits than its factorization.

55459194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45574.

The product of its digits is 162000, while the sum is 42.

The square root of 55459194 is about 7447.0929898854. The cubic root of 55459194 is about 381.3506736196.

The spelling of 55459194 in words is "fifty-five million, four hundred fifty-nine thousand, one hundred ninety-four".