56065691 has 8 divisors (see below), whose sum is σ = 61252464. Its totient is φ = 50893920.

The previous prime is 56065687. The next prime is 56065699. The reversal of 56065691 is 19656065.

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

It is not a de Polignac number, because 56065691 - 2² = 56065687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56065699) 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, 4961 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (7656558).

Almost surely, 2^56065691 is an apocalyptic number.

56065691 is a deficient number, since it is larger than the sum of its proper divisors (5186773).

56065691 is a wasteful number, since it uses less digits than its factorization.

56065691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 56065691 is about 7487.7026516816. The cubic root of 56065691 is about 382.7357761475.

The spelling of 56065691 in words is "fifty-six million, sixty-five thousand, six hundred ninety-one".