56501011 has 8 divisors (see below), whose sum is σ = 66074624. Its totient is φ = 47302920.

The previous prime is 56500963. The next prime is 56501023. The reversal of 56501011 is 11010565.

56501011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56501011 - 2⁷ = 56500883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56501011.

It is not an unprimeable number, because it can be changed into a prime (56501911) 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 7 ways as a sum of consecutive naturals, for example, 93555 + ... + 94156.

It is an arithmetic number, because the mean of its divisors is an integer number (8259328).

Almost surely, 2^56501011 is an apocalyptic number.

56501011 is a deficient number, since it is larger than the sum of its proper divisors (9573613).

56501011 is a wasteful number, since it uses less digits than its factorization.

56501011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187761.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 56501011 is about 7516.7154396053. The cubic root of 56501011 is about 383.7238026729.

Adding to 56501011 its reverse (11010565), we get a palindrome (67511576).

The spelling of 56501011 in words is "fifty-six million, five hundred one thousand, eleven".