56111005 has 4 divisors (see below), whose sum is σ = 67333212. Its totient is φ = 44888800.

The previous prime is 56110987. The next prime is 56111021. The reversal of 56111005 is 50011165.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43797924 + 12313081 = 6618^2 + 3509^2 .

It is not a de Polignac number, because 56111005 - 2⁵ = 56110973 is a prime.

It is a super-2 number, since 2×56111005² = 6296889764220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611096 + ... + 5611105.

It is an arithmetic number, because the mean of its divisors is an integer number (16833303).

Almost surely, 2^56111005 is an apocalyptic number.

It is an amenable number.

56111005 is a deficient number, since it is larger than the sum of its proper divisors (11222207).

56111005 is a wasteful number, since it uses less digits than its factorization.

56111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222206.

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

The square root of 56111005 is about 7490.7279352544. The cubic root of 56111005 is about 382.8388612861.

The spelling of 56111005 in words is "fifty-six million, one hundred eleven thousand, five".