56521105 has 8 divisors (see below), whose sum is σ = 71395200. Its totient is φ = 42836976.

The previous prime is 56521079. The next prime is 56521109. The reversal of 56521105 is 50112565.

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 56521105 - 2⁷ = 56520977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56521105.

It is not an unprimeable number, because it can be changed into a prime (56521109) 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, 297385 + ... + 297574.

It is an arithmetic number, because the mean of its divisors is an integer number (8924400).

Almost surely, 2^56521105 is an apocalyptic number.

It is an amenable number.

56521105 is a deficient number, since it is larger than the sum of its proper divisors (14874095).

56521105 is a wasteful number, since it uses less digits than its factorization.

56521105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594983.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 56521105 is about 7518.0519418264. The cubic root of 56521105 is about 383.7692864148.

The spelling of 56521105 in words is "fifty-six million, five hundred twenty-one thousand, one hundred five".