56205601 has 4 divisors (see below), whose sum is σ = 57512752. Its totient is φ = 54898452.

The previous prime is 56205559. The next prime is 56205641. The reversal of 56205601 is 10650265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56205601 - 2⁷ = 56205473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56205641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653511 + ... + 653596.

It is an arithmetic number, because the mean of its divisors is an integer number (14378188).

Almost surely, 2^56205601 is an apocalyptic number.

It is an amenable number.

56205601 is a deficient number, since it is larger than the sum of its proper divisors (1307151).

56205601 is a wasteful number, since it uses less digits than its factorization.

56205601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307150.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56205601 is about 7497.0394823557. The cubic root of 56205601 is about 383.0538796689.

Adding to 56205601 its reverse (10650265), we get a palindrome (66855866).

The spelling of 56205601 in words is "fifty-six million, two hundred five thousand, six hundred one".