54543240 has 64 divisors (see below), whose sum is σ = 181814400. Its totient is φ = 14544576.

The previous prime is 54543227. The next prime is 54543241. The reversal of 54543240 is 4234545.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (54543241) 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, 24172 + ... + 26331.

It is an arithmetic number, because the mean of its divisors is an integer number (2840850).

Almost surely, 2^54543240 is an apocalyptic number.

It is an amenable number.

54543240 is an abundant number, since it is smaller than the sum of its proper divisors (127271160).

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

54543240 is a wasteful number, since it uses less digits than its factorization.

54543240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50523 (or 50513 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 54543240 is about 7385.3395318022. The cubic root of 54543240 is about 379.2395688560.

Adding to 54543240 its reverse (4234545), we get a palindrome (58777785).

The spelling of 54543240 in words is "fifty-four million, five hundred forty-three thousand, two hundred forty".