54581340 has 48 divisors (see below), whose sum is σ = 166723200. Its totient is φ = 13231680.

The previous prime is 54581333. The next prime is 54581363. The reversal of 54581340 is 4318545.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54581298 and 54581307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40690 + ... + 42009.

It is an arithmetic number, because the mean of its divisors is an integer number (3473400).

Almost surely, 2^54581340 is an apocalyptic number.

It is an amenable number.

54581340 is an abundant number, since it is smaller than the sum of its proper divisors (112141860).

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

54581340 is a wasteful number, since it uses less digits than its factorization.

54581340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82722 (or 82720 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 54581340 is about 7387.9185160639. The cubic root of 54581340 is about 379.3278515013.

Adding to 54581340 its reverse (4318545), we get a palindrome (58899885).

The spelling of 54581340 in words is "fifty-four million, five hundred eighty-one thousand, three hundred forty".