56201565 has 32 divisors (see below), whose sum is σ = 106318080. Its totient is φ = 24804864.

The previous prime is 56201533. The next prime is 56201573. The reversal of 56201565 is 56510265.

It is not a de Polignac number, because 56201565 - 2⁵ = 56201533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6184 + ... + 12273.

It is an arithmetic number, because the mean of its divisors is an integer number (3322440).

Almost surely, 2^56201565 is an apocalyptic number.

It is an amenable number.

56201565 is a deficient number, since it is larger than the sum of its proper divisors (50116515).

56201565 is a wasteful number, since it uses less digits than its factorization.

56201565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 56201565 is about 7496.7703046045. The cubic root of 56201565 is about 383.0447106986.

The spelling of 56201565 in words is "fifty-six million, two hundred one thousand, five hundred sixty-five".