2056536042 has 64 divisors (see below), whose sum is σ = 4623796224. Its totient is φ = 604432640.

The previous prime is 2056535981. The next prime is 2056536047. The reversal of 2056536042 is 2406356502.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2056535994 and 2056536012.

It is not an unprimeable number, because it can be changed into a prime (2056536047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347593 + ... + 353459.

It is an arithmetic number, because the mean of its divisors is an integer number (72246816).

Almost surely, 2^2056536042 is an apocalyptic number.

2056536042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2056536042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311898112).

2056536042 is an abundant number, since it is smaller than the sum of its proper divisors (2567260182).

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

2056536042 is a wasteful number, since it uses less digits than its factorization.

2056536042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2056536042 is about 45349.0467595516. The cubic root of 2056536042 is about 1271.6827347951.

The spelling of 2056536042 in words is "two billion, fifty-six million, five hundred thirty-six thousand, forty-two".