54380409 has 4 divisors (see below), whose sum is σ = 72507216. Its totient is φ = 36253604.

The previous prime is 54380407. The next prime is 54380437. The reversal of 54380409 is 90408345.

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 54380409 - 2¹ = 54380407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54380409.

It is not an unprimeable number, because it can be changed into a prime (54380407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9063399 + ... + 9063404.

It is an arithmetic number, because the mean of its divisors is an integer number (18126804).

Almost surely, 2^54380409 is an apocalyptic number.

It is an amenable number.

54380409 is a deficient number, since it is larger than the sum of its proper divisors (18126807).

54380409 is a wasteful number, since it uses less digits than its factorization.

54380409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126806.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 54380409 is about 7374.3073573048. The cubic root of 54380409 is about 378.8618042856.

The spelling of 54380409 in words is "fifty-four million, three hundred eighty thousand, four hundred nine".