54099569 has 4 divisors (see below), whose sum is σ = 54158244. Its totient is φ = 54040896.

The previous prime is 54099533. The next prime is 54099581. The reversal of 54099569 is 96599045.

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 4255969 + 49843600 = 2063^2 + 7060^2 .

It is a cyclic number.

It is not a de Polignac number, because 54099569 - 2⁸ = 54099313 is a prime.

It is a super-2 number, since 2×54099569² = 5853526731971522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54099509) 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, 27932 + ... + 29805.

It is an arithmetic number, because the mean of its divisors is an integer number (13539561).

Almost surely, 2^54099569 is an apocalyptic number.

It is an amenable number.

54099569 is a deficient number, since it is larger than the sum of its proper divisors (58675).

54099569 is an equidigital number, since it uses as much as digits as its factorization.

54099569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58674.

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 54099569 is about 7355.2409205953. The cubic root of 54099569 is about 378.2084854388.

The spelling of 54099569 in words is "fifty-four million, ninety-nine thousand, five hundred sixty-nine".