54780684 has 48 divisors (see below), whose sum is σ = 148490496. Its totient is φ = 15393600.

The previous prime is 54780673. The next prime is 54780697. The reversal of 54780684 is 48608745.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222 + ... + 10469.

It is an arithmetic number, because the mean of its divisors is an integer number (3093552).

Almost surely, 2^54780684 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 54780684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74245248).

54780684 is an abundant number, since it is smaller than the sum of its proper divisors (93709812).

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

54780684 is a wasteful number, since it uses less digits than its factorization.

54780684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766 (or 10764 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 54780684 is about 7401.3974356198. The cubic root of 54780684 is about 379.7890888693.

The spelling of 54780684 in words is "fifty-four million, seven hundred eighty thousand, six hundred eighty-four".