54213913 has 4 divisors (see below), whose sum is σ = 58384228. Its totient is φ = 50043600.

The previous prime is 54213911. The next prime is 54213919. The reversal of 54213913 is 31931245.

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 8082649 + 46131264 = 2843^2 + 6792^2 .

It is a cyclic number.

It is not a de Polignac number, because 54213913 - 2¹ = 54213911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54213911) 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, 2085138 + ... + 2085163.

It is an arithmetic number, because the mean of its divisors is an integer number (14596057).

Almost surely, 2^54213913 is an apocalyptic number.

It is an amenable number.

54213913 is a deficient number, since it is larger than the sum of its proper divisors (4170315).

54213913 is a wasteful number, since it uses less digits than its factorization.

54213913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170314.

The product of its digits is 3240, while the sum is 28.

The square root of 54213913 is about 7363.0097786164. The cubic root of 54213913 is about 378.4747564378.

The spelling of 54213913 in words is "fifty-four million, two hundred thirteen thousand, nine hundred thirteen".