54090312 has 16 divisors (see below), whose sum is σ = 135225840. Its totient is φ = 18030096.

The previous prime is 54090301. The next prime is 54090313. The reversal of 54090312 is 21309045.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2253763 = 54090312 / (5 + 4 + 0 + 9 + 0 + 3 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (54090313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126858 + ... + 1126905.

It is an arithmetic number, because the mean of its divisors is an integer number (8451615).

Almost surely, 2^54090312 is an apocalyptic number.

It is an amenable number.

54090312 is an abundant number, since it is smaller than the sum of its proper divisors (81135528).

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

54090312 is a wasteful number, since it uses less digits than its factorization.

54090312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253772 (or 2253768 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 54090312 is about 7354.6116144906. The cubic root of 54090312 is about 378.1869124039.

Adding to 54090312 its reverse (21309045), we get a palindrome (75399357).

The spelling of 54090312 in words is "fifty-four million, ninety thousand, three hundred twelve".