54880280 has 64 divisors (see below), whose sum is σ = 151986240. Its totient is φ = 17367552.

The previous prime is 54880249. The next prime is 54880289. The reversal of 54880280 is 8208845.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 54880280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54880289) 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, 3899 + ... + 11178.

It is an arithmetic number, because the mean of its divisors is an integer number (2374785).

Almost surely, 2^54880280 is an apocalyptic number.

It is an amenable number.

54880280 is an abundant number, since it is smaller than the sum of its proper divisors (97105960).

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

54880280 is a wasteful number, since it uses less digits than its factorization.

54880280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15108 (or 15104 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 54880280 is about 7408.1225691804. The cubic root of 54880280 is about 380.0191126121.

It can be divided in two parts, 54880 and 280, that multiplied together give a square (15366400 = 3920²).

The spelling of 54880280 in words is "fifty-four million, eight hundred eighty thousand, two hundred eighty".