55541998 has 4 divisors (see below), whose sum is σ = 83313000. Its totient is φ = 27770998.

The previous prime is 55541971. The next prime is 55541999. The reversal of 55541998 is 89914555.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55541999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13885498 + ... + 13885501.

It is an arithmetic number, because the mean of its divisors is an integer number (20828250).

Almost surely, 2^55541998 is an apocalyptic number.

55541998 is a deficient number, since it is larger than the sum of its proper divisors (27771002).

55541998 is a wasteful number, since it uses less digits than its factorization.

55541998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27771001.

The product of its digits is 324000, while the sum is 46.

The square root of 55541998 is about 7452.6504010318. The cubic root of 55541998 is about 381.5403726053.

The spelling of 55541998 in words is "fifty-five million, five hundred forty-one thousand, nine hundred ninety-eight".