56308405 has 8 divisors (see below), whose sum is σ = 67792032. Its totient is φ = 44898768.

The previous prime is 56308391. The next prime is 56308423. The reversal of 56308405 is 50480365.

56308405 = 266² + 267² + ... + 572².

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 56308405 - 2¹³ = 56300213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16807 + ... + 19876.

It is an arithmetic number, because the mean of its divisors is an integer number (8474004).

Almost surely, 2^56308405 is an apocalyptic number.

It is an amenable number.

56308405 is a deficient number, since it is larger than the sum of its proper divisors (11483627).

56308405 is a wasteful number, since it uses less digits than its factorization.

56308405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36995.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 56308405 is about 7503.8926564817. The cubic root of 56308405 is about 383.2872815924.

The spelling of 56308405 in words is "fifty-six million, three hundred eight thousand, four hundred five".