2591629056 has 216 divisors, whose sum is σ = 7989456384. Its totient is φ = 805109760.

The previous prime is 2591629043. The next prime is 2591629057. The reversal of 2591629056 is 6509261952.

It is a happy number.

2591629056 is a `hidden beast` number, since 2 + 591 + 6 + 2 + 9 + 0 + 56 = 666.

It is a super-2 number, since 2×2591629056² = 13433082327806902272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591629057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4974076 + ... + 4974596.

It is an arithmetic number, because the mean of its divisors is an integer number (36988224).

Almost surely, 2^2591629056 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 2591629056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3994728192).

2591629056 is an abundant number, since it is smaller than the sum of its proper divisors (5397827328).

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

2591629056 is a wasteful number, since it uses less digits than its factorization.

2591629056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 2591629056 is about 50908.0451009465. The cubic root of 2591629056 is about 1373.5915594069.

The spelling of 2591629056 in words is "two billion, five hundred ninety-one million, six hundred twenty-nine thousand, fifty-six".