56405699 has 8 divisors (see below), whose sum is σ = 67856640. Its totient is φ = 45803016.

The previous prime is 56405693. The next prime is 56405707. The reversal of 56405699 is 99650465.

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

It is not a de Polignac number, because 56405699 - 2¹² = 56401603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56405693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211919 + ... + 212184.

It is an arithmetic number, because the mean of its divisors is an integer number (8482080).

Almost surely, 2^56405699 is an apocalyptic number.

56405699 is a deficient number, since it is larger than the sum of its proper divisors (11450941).

56405699 is a wasteful number, since it uses less digits than its factorization.

56405699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424129.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 56405699 is about 7510.3727603895. The cubic root of 56405699 is about 383.5079123310.

The spelling of 56405699 in words is "fifty-six million, four hundred five thousand, six hundred ninety-nine".