54012240 has 60 divisors (see below), whose sum is σ = 181393524. Its totient is φ = 14403072.

The previous prime is 54012229. The next prime is 54012289. The reversal of 54012240 is 4221045.

54012240 is a `hidden beast` number, since 540 + 122 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 38044224 = 3996^2 + 6168^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36789 + ... + 38228.

Almost surely, 2^54012240 is an apocalyptic number.

It is an amenable number.

54012240 is an abundant number, since it is smaller than the sum of its proper divisors (127381284).

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

54012240 is a wasteful number, since it uses less digits than its factorization.

54012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75036 (or 75027 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 54012240 is about 7349.3020076739. The cubic root of 54012240 is about 378.0048710215.

Adding to 54012240 its reverse (4221045), we get a palindrome (58233285).

The spelling of 54012240 in words is "fifty-four million, twelve thousand, two hundred forty".