54056009 has 4 divisors (see below), whose sum is σ = 61778304. Its totient is φ = 46333716.

The previous prime is 54055997. The next prime is 54056017. The reversal of 54056009 is 90065045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54056009 - 2¹² = 54051913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54056089) 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, 3861137 + ... + 3861150.

It is an arithmetic number, because the mean of its divisors is an integer number (15444576).

Almost surely, 2^54056009 is an apocalyptic number.

It is an amenable number.

54056009 is a deficient number, since it is larger than the sum of its proper divisors (7722295).

54056009 is an equidigital number, since it uses as much as digits as its factorization.

54056009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7722294.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 54056009 is about 7352.2791704342. The cubic root of 54056009 is about 378.1069492920.

The spelling of 54056009 in words is "fifty-four million, fifty-six thousand, nine".