54163513 has 6 divisors (see below), whose sum is σ = 57537326. Its totient is φ = 50977152.

The previous prime is 54163511. The next prime is 54163519. The reversal of 54163513 is 31536145.

It can be written as a sum of positive squares in 3 ways, for example, as 25775929 + 28387584 = 5077^2 + 5328^2 .

It is not a de Polignac number, because 54163513 - 2¹ = 54163511 is a prime.

It is a super-2 number, since 2×54163513² = 5867372281002338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54163511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93420 + ... + 93997.

Almost surely, 2^54163513 is an apocalyptic number.

It is an amenable number.

54163513 is a deficient number, since it is larger than the sum of its proper divisors (3373813).

54163513 is a wasteful number, since it uses less digits than its factorization.

54163513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187451 (or 187434 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 54163513 is about 7359.5864693609. The cubic root of 54163513 is about 378.3574369725.

Adding to 54163513 its reverse (31536145), we get a palindrome (85699658).

The spelling of 54163513 in words is "fifty-four million, one hundred sixty-three thousand, five hundred thirteen".