54999900 has 108 divisors (see below), whose sum is σ = 179957232. Its totient is φ = 14023680.

The previous prime is 54999899. The next prime is 54999907. The reversal of 54999900 is 999945.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54999907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19372 + ... + 22028.

Almost surely, 2^54999900 is an apocalyptic number.

54999900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54999900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89978616).

54999900 is an abundant number, since it is smaller than the sum of its proper divisors (124957332).

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

54999900 is a wasteful number, since it uses less digits than its factorization.

54999900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 54999900 is about 7416.1917450940. The cubic root of 54999900 is about 380.2950155940.

Adding to 54999900 its sum of digits (45), we get a palindrome (54999945).

The spelling of 54999900 in words is "fifty-four million, nine hundred ninety-nine thousand, nine hundred".