56801543 has 4 divisors (see below), whose sum is σ = 57141840. Its totient is φ = 56461248.

The previous prime is 56801527. The next prime is 56801561. The reversal of 56801543 is 34510865.

It is a happy number.

56801543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56801543 - 2⁴ = 56801527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56801593) 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 3 ways as a sum of consecutive naturals, for example, 169898 + ... + 170231.

It is an arithmetic number, because the mean of its divisors is an integer number (14285460).

Almost surely, 2^56801543 is an apocalyptic number.

56801543 is a deficient number, since it is larger than the sum of its proper divisors (340297).

56801543 is a wasteful number, since it uses less digits than its factorization.

56801543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340296.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 56801543 is about 7536.6798392926. The cubic root of 56801543 is about 384.4029493238.

The spelling of 56801543 in words is "fifty-six million, eight hundred one thousand, five hundred forty-three".