54039091 has 4 divisors (see below), whose sum is σ = 54056800. Its totient is φ = 54021384.

The previous prime is 54039079. The next prime is 54039101. The reversal of 54039091 is 19093045.

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

It is a cyclic number.

It is not a de Polignac number, because 54039091 - 2¹¹ = 54037043 is a prime.

It is a super-2 number, since 2×54039091² = 5840446712212562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54039031) 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, 2976 + ... + 10813.

It is an arithmetic number, because the mean of its divisors is an integer number (13514200).

Almost surely, 2^54039091 is an apocalyptic number.

54039091 is a deficient number, since it is larger than the sum of its proper divisors (17709).

54039091 is a wasteful number, since it uses less digits than its factorization.

54039091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17708.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 54039091 is about 7351.1285528142. The cubic root of 54039091 is about 378.0674995870.

The spelling of 54039091 in words is "fifty-four million, thirty-nine thousand, ninety-one".