56539803 has 8 divisors (see below), whose sum is σ = 75625488. Its totient is φ = 37573664.

The previous prime is 56539799. The next prime is 56539859. The reversal of 56539803 is 30893565.

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 56539803 - 2² = 56539799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56531803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28776 + ... + 30677.

It is an arithmetic number, because the mean of its divisors is an integer number (9453186).

Almost surely, 2^56539803 is an apocalyptic number.

56539803 is a deficient number, since it is larger than the sum of its proper divisors (19085685).

56539803 is a wasteful number, since it uses less digits than its factorization.

56539803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59773.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 56539803 is about 7519.2953792227. The cubic root of 56539803 is about 383.8116005615.

The spelling of 56539803 in words is "fifty-six million, five hundred thirty-nine thousand, eight hundred three".