54532240 has 40 divisors (see below), whose sum is σ = 144901440. Its totient is φ = 18696576.

The previous prime is 54532237. The next prime is 54532249. The reversal of 54532240 is 4223545.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (54532249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48130 + ... + 49249.

It is an arithmetic number, because the mean of its divisors is an integer number (3622536).

Almost surely, 2^54532240 is an apocalyptic number.

It is an amenable number.

54532240 is an abundant number, since it is smaller than the sum of its proper divisors (90369200).

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

54532240 is a wasteful number, since it uses less digits than its factorization.

54532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97399 (or 97393 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54532240 is about 7384.5947756123. The cubic root of 54532240 is about 379.2140727803.

Adding to 54532240 its reverse (4223545), we get a palindrome (58755785).

The spelling of 54532240 in words is "fifty-four million, five hundred thirty-two thousand, two hundred forty".