55457898 has 8 divisors (see below), whose sum is σ = 110915808. Its totient is φ = 18485964.

The previous prime is 55457891. The next prime is 55457923. The reversal of 55457898 is 89875455.

55457898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

55457898 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55457898.

It is not an unprimeable number, because it can be changed into a prime (55457891) 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 3 ways as a sum of consecutive naturals, for example, 4621486 + ... + 4621497.

It is an arithmetic number, because the mean of its divisors is an integer number (13864476).

Almost surely, 2^55457898 is an apocalyptic number.

55457898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55457898 is a wasteful number, since it uses less digits than its factorization.

55457898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242988.

The product of its digits is 2016000, while the sum is 51.

The square root of 55457898 is about 7447.0059755582. The cubic root of 55457898 is about 381.3477030612.

The spelling of 55457898 in words is "fifty-five million, four hundred fifty-seven thousand, eight hundred ninety-eight".