56011005 has 48 divisors (see below), whose sum is σ = 103581504. Its totient is φ = 27901440.

The previous prime is 56010991. The next prime is 56011009. The reversal of 56011005 is 50011065.

56011005 is a `hidden beast` number, since 560 + 1 + 100 + 5 = 666.

It is not a de Polignac number, because 56011005 - 2⁴ = 56010989 is a prime.

It is a super-2 number, since 2×56011005² = 6274465362220050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56011009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161242 + ... + 161588.

It is an arithmetic number, because the mean of its divisors is an integer number (2157948).

Almost surely, 2^56011005 is an apocalyptic number.

It is an amenable number.

56011005 is a deficient number, since it is larger than the sum of its proper divisors (47570499).

56011005 is a wasteful number, since it uses less digits than its factorization.

56011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 56011005 is about 7484.0500399182. The cubic root of 56011005 is about 382.6112965888.

The spelling of 56011005 in words is "fifty-six million, eleven thousand, five".