56201517 has 12 divisors (see below), whose sum is σ = 81252444. Its totient is φ = 37434240.

The previous prime is 56201513. The next prime is 56201521. The reversal of 56201517 is 71510265.

56201517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56201513) and next prime (56201521).

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 51753636 = 2109^2 + 7194^2 .

It is not a de Polignac number, because 56201517 - 2² = 56201513 is a prime.

It is a super-2 number, since 2×56201517² = 6317221026202578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56201513) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11967 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (6771037).

Almost surely, 2^56201517 is an apocalyptic number.

It is an amenable number.

56201517 is a deficient number, since it is larger than the sum of its proper divisors (25050927).

56201517 is a wasteful number, since it uses less digits than its factorization.

56201517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580 (or 5577 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 56201517 is about 7496.7671032252. The cubic root of 56201517 is about 383.0446016497.

The spelling of 56201517 in words is "fifty-six million, two hundred one thousand, five hundred seventeen".