54015481 has 4 divisors (see below), whose sum is σ = 58170532. Its totient is φ = 49860432.

The previous prime is 54015473. The next prime is 54015497. The reversal of 54015481 is 18451045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25755625 + 28259856 = 5075^2 + 5316^2 .

It is a cyclic number.

It is not a de Polignac number, because 54015481 - 2³ = 54015473 is a prime.

It is a super-2 number, since 2×54015481² = 5835344375322722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54015421) 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, 2077506 + ... + 2077531.

It is an arithmetic number, because the mean of its divisors is an integer number (14542633).

Almost surely, 2^54015481 is an apocalyptic number.

It is an amenable number.

54015481 is a deficient number, since it is larger than the sum of its proper divisors (4155051).

54015481 is a wasteful number, since it uses less digits than its factorization.

54015481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155050.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 54015481 is about 7349.5225014963. The cubic root of 54015481 is about 378.0124315873.

The spelling of 54015481 in words is "fifty-four million, fifteen thousand, four hundred eighty-one".