56319405 has 24 divisors (see below), whose sum is σ = 93135456. Its totient is φ = 29060640.

The previous prime is 56319397. The next prime is 56319407. The reversal of 56319405 is 50491365.

It is a happy number.

It is not a de Polignac number, because 56319405 - 2³ = 56319397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56319407) 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 23 ways as a sum of consecutive naturals, for example, 12462 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (3880644).

Almost surely, 2^56319405 is an apocalyptic number.

It is an amenable number.

56319405 is a deficient number, since it is larger than the sum of its proper divisors (36816051).

56319405 is a wasteful number, since it uses less digits than its factorization.

56319405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977 (or 3946 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56319405 is about 7504.6255736046. The cubic root of 56319405 is about 383.3122387048.

The spelling of 56319405 in words is "fifty-six million, three hundred nineteen thousand, four hundred five".