54108409 has 8 divisors (see below), whose sum is σ = 57039840. Its totient is φ = 51185376.

The previous prime is 54108407. The next prime is 54108419. The reversal of 54108409 is 90480145.

It is a happy number.

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 54108409 - 2¹ = 54108407 is a prime.

It is a super-2 number, since 2×54108409² = 5855439849022562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54108407) 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, 14622 + ... + 17944.

It is an arithmetic number, because the mean of its divisors is an integer number (7129980).

Almost surely, 2^54108409 is an apocalyptic number.

It is an amenable number.

54108409 is a deficient number, since it is larger than the sum of its proper divisors (2931431).

54108409 is a wasteful number, since it uses less digits than its factorization.

54108409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 54108409 is about 7355.8418280983. The cubic root of 54108409 is about 378.2290843763.

The spelling of 54108409 in words is "fifty-four million, one hundred eight thousand, four hundred nine".