54281815 has 16 divisors (see below), whose sum is σ = 75018240. Its totient is φ = 36934560.

The previous prime is 54281807. The next prime is 54281819. The reversal of 54281815 is 51818245.

It is not a de Polignac number, because 54281815 - 2³ = 54281807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54281819) 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, 1335 + ... + 10504.

It is an arithmetic number, because the mean of its divisors is an integer number (4688640).

Almost surely, 2^54281815 is an apocalyptic number.

54281815 is a deficient number, since it is larger than the sum of its proper divisors (20736425).

54281815 is a wasteful number, since it uses less digits than its factorization.

54281815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982.

The product of its digits is 12800, while the sum is 34.

The square root of 54281815 is about 7367.6193577030. The cubic root of 54281815 is about 378.6327015708.

The spelling of 54281815 in words is "fifty-four million, two hundred eighty-one thousand, eight hundred fifteen".