56105807 has 4 divisors (see below), whose sum is σ = 58040520. Its totient is φ = 54171096.

The previous prime is 56105789. The next prime is 56105813. The reversal of 56105807 is 70850165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70850165 = 5 ⋅14170033.

It is a cyclic number.

It is not a de Polignac number, because 56105807 - 2⁸ = 56105551 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 (56105857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967313 + ... + 967370.

It is an arithmetic number, because the mean of its divisors is an integer number (14510130).

Almost surely, 2^56105807 is an apocalyptic number.

56105807 is a deficient number, since it is larger than the sum of its proper divisors (1934713).

56105807 is a wasteful number, since it uses less digits than its factorization.

56105807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934712.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 56105807 is about 7490.3809649443. The cubic root of 56105807 is about 382.8270391379.

The spelling of 56105807 in words is "fifty-six million, one hundred five thousand, eight hundred seven".