56206505 has 8 divisors (see below), whose sum is σ = 71415432. Its totient is φ = 42320128.

The previous prime is 56206499. The next prime is 56206523. The reversal of 56206505 is 50560265.

56206505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17106496 + 39100009 = 4136^2 + 6253^2 .

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 56206505 - 2¹⁰ = 56205481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330542 + ... + 330711.

It is an arithmetic number, because the mean of its divisors is an integer number (8926929).

Almost surely, 2^56206505 is an apocalyptic number.

It is an amenable number.

56206505 is a deficient number, since it is larger than the sum of its proper divisors (15208927).

56206505 is a wasteful number, since it uses less digits than its factorization.

56206505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661275.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 56206505 is about 7497.0997725787. The cubic root of 56206505 is about 383.0559333127.

The spelling of 56206505 in words is "fifty-six million, two hundred six thousand, five hundred five".