1001056056 has 128 divisors (see below), whose sum is σ = 3360268800. Its totient is φ = 240007680.

The previous prime is 1001055989. The next prime is 1001056087. The reversal of 1001056056 is 6506501001.

It is a super-2 number, since 2×1001056056² = 2004226454508550272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3190 + ... + 44858.

It is an arithmetic number, because the mean of its divisors is an integer number (26252100).

Almost surely, 2^1001056056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001056056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680134400).

1001056056 is an abundant number, since it is smaller than the sum of its proper divisors (2359212744).

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

1001056056 is a wasteful number, since it uses less digits than its factorization.

1001056056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41709 (or 41705 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1001056056 is about 31639.4699070639. The cubic root of 1001056056 is about 1000.3518948222.

Adding to 1001056056 its reverse (6506501001), we get a palindrome (7507557057).

It can be divided in two parts, 10010 and 56056, that added together give a palindrome (66066).

The spelling of 1001056056 in words is "one billion, one million, fifty-six thousand, fifty-six".