56011004 has 12 divisors (see below), whose sum is σ = 112022064. Its totient is φ = 24004704.

The previous prime is 56010991. The next prime is 56011009. The reversal of 56011004 is 40011065.

It is a happy number.

56011004 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1000169 + ... + 1000224.

It is an arithmetic number, because the mean of its divisors is an integer number (9335172).

Almost surely, 2^56011004 is an apocalyptic number.

It is an amenable number.

56011004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56011004 is a wasteful number, since it uses less digits than its factorization.

56011004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000404 (or 2000402 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 56011004 is about 7484.0499731095. The cubic root of 56011004 is about 382.6112943118.

Adding to 56011004 its reverse (40011065), we get a palindrome (96022069).

The spelling of 56011004 in words is "fifty-six million, eleven thousand, four".