54190009 has 8 divisors (see below), whose sum is σ = 57117960. Its totient is φ = 51332736.

The previous prime is 54189991. The next prime is 54190027. The reversal of 54190009 is 90009145.

It is an interprime number because it is at equal distance from previous prime (54189991) and next prime (54190027).

It can be written as a sum of positive squares in 4 ways, for example, as 1946025 + 52243984 = 1395^2 + 7228^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54190009 - 2⁵ = 54189977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54190039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16092 + ... + 19165.

It is an arithmetic number, because the mean of its divisors is an integer number (7139745).

Almost surely, 2^54190009 is an apocalyptic number.

It is an amenable number.

54190009 is a deficient number, since it is larger than the sum of its proper divisors (2927951).

54190009 is a wasteful number, since it uses less digits than its factorization.

54190009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35339.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 54190009 is about 7361.3863504098. The cubic root of 54190009 is about 378.4191225603.

The spelling of 54190009 in words is "fifty-four million, one hundred ninety thousand, nine".