53927409 has 8 divisors (see below), whose sum is σ = 72344992. Its totient is φ = 35730720.

The previous prime is 53927399. The next prime is 53927437. The reversal of 53927409 is 90472935.

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

It is a de Polignac number, because none of the positive numbers 2^k-53927409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53927309) 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 7 ways as a sum of consecutive naturals, for example, 54652 + ... + 55629.

It is an arithmetic number, because the mean of its divisors is an integer number (9043124).

Almost surely, 2^53927409 is an apocalyptic number.

It is an amenable number.

53927409 is a deficient number, since it is larger than the sum of its proper divisors (18417583).

53927409 is a wasteful number, since it uses less digits than its factorization.

53927409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110447.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 53927409 is about 7343.5283753792. The cubic root of 53927409 is about 377.8068706321.

The spelling of 53927409 in words is "fifty-three million, nine hundred twenty-seven thousand, four hundred nine".