56819405 has 8 divisors (see below), whose sum is σ = 71772000. Its totient is φ = 43063056.

The previous prime is 56819401. The next prime is 56819431. The reversal of 56819405 is 50491865.

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 56819405 - 2² = 56819401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56819401) 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, 298955 + ... + 299144.

It is an arithmetic number, because the mean of its divisors is an integer number (8971500).

Almost surely, 2^56819405 is an apocalyptic number.

It is an amenable number.

56819405 is a deficient number, since it is larger than the sum of its proper divisors (14952595).

56819405 is a wasteful number, since it uses less digits than its factorization.

56819405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598123.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 56819405 is about 7537.8647507102. The cubic root of 56819405 is about 384.4432386394.

The spelling of 56819405 in words is "fifty-six million, eight hundred nineteen thousand, four hundred five".