54550992 has 80 divisors (see below), whose sum is σ = 147365568. Its totient is φ = 17372160.

The previous prime is 54550981. The next prime is 54550997. The reversal of 54550992 is 29905545.

It is a self number, because there is not a number n which added to its sum of digits gives 54550992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54550997) 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, 104043 + ... + 104565.

Almost surely, 2^54550992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54550992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73682784).

54550992 is an abundant number, since it is smaller than the sum of its proper divisors (92814576).

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

54550992 is a wasteful number, since it uses less digits than its factorization.

54550992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 54550992 is about 7385.8643366907. The cubic root of 54550992 is about 379.2575345769.

The spelling of 54550992 in words is "fifty-four million, five hundred fifty thousand, nine hundred ninety-two".