2056621532 has 72 divisors (see below), whose sum is σ = 4249905408. Its totient is φ = 868224000.

The previous prime is 2056621513. The next prime is 2056621591. The reversal of 2056621532 is 2351266502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5128532 + ... + 5128932.

It is an arithmetic number, because the mean of its divisors is an integer number (59026464).

Almost surely, 2^2056621532 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 2056621532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2124952704).

2056621532 is an abundant number, since it is smaller than the sum of its proper divisors (2193283876).

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

2056621532 is a wasteful number, since it uses less digits than its factorization.

2056621532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2056621532 is about 45349.9893274519. The cubic root of 2056621532 is about 1271.7003557928.

The spelling of 2056621532 in words is "two billion, fifty-six million, six hundred twenty-one thousand, five hundred thirty-two".