55267998 has 32 divisors (see below), whose sum is σ = 116759040. Its totient is φ = 17392320.

The previous prime is 55267991. The next prime is 55268023. The reversal of 55267998 is 89976255.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55267998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55267991) 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, 41178 + ... + 42498.

It is an arithmetic number, because the mean of its divisors is an integer number (3648720).

Almost surely, 2^55267998 is an apocalyptic number.

55267998 is an abundant number, since it is smaller than the sum of its proper divisors (61491042).

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

55267998 is a wasteful number, since it uses less digits than its factorization.

55267998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its digits is 1360800, while the sum is 51.

The square root of 55267998 is about 7434.2449515738. The cubic root of 55267998 is about 380.9119325800.

It can be divided in two parts, 55267 and 998, that added together give a palindrome (56265).

The spelling of 55267998 in words is "fifty-five million, two hundred sixty-seven thousand, nine hundred ninety-eight".