1001772056 has 32 divisors (see below), whose sum is σ = 2057400000. Its totient is φ = 455164416.

The previous prime is 1001772047. The next prime is 1001772089. The reversal of 1001772056 is 6502771001.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123056 + ... + 130943.

It is an arithmetic number, because the mean of its divisors is an integer number (64293750).

Almost surely, 2^1001772056 is an apocalyptic number.

It is an amenable number.

1001772056 is an abundant number, since it is smaller than the sum of its proper divisors (1055627944).

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

1001772056 is a wasteful number, since it uses less digits than its factorization.

1001772056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254051 (or 254047 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 1001772056 is about 31650.7828655153. The cubic root of 1001772056 is about 1000.5903367673.

The spelling of 1001772056 in words is "one billion, one million, seven hundred seventy-two thousand, fifty-six".