2056605650 has 48 divisors (see below), whose sum is σ = 4210096608. Its totient is φ = 741216000.

The previous prime is 2056605641. The next prime is 2056605659. The reversal of 2056605650 is 565066502.

It is an interprime number because it is at equal distance from previous prime (2056605641) and next prime (2056605659).

It is a super-2 number, since 2×2056605650² = 8459253599223845000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2056605650.

It is not an unprimeable number, because it can be changed into a prime (2056605659) 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, 45605 + ... + 78695.

It is an arithmetic number, because the mean of its divisors is an integer number (87710346).

Almost surely, 2^2056605650 is an apocalyptic number.

2056605650 is an abundant number, since it is smaller than the sum of its proper divisors (2153490958).

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

2056605650 is a wasteful number, since it uses less digits than its factorization.

2056605650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33227 (or 33222 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 2056605650 is about 45349.8142223317. The cubic root of 2056605650 is about 1271.6970822692.

It can be divided in two parts, 2056 and 605650, that added together give a palindrome (607706).

The spelling of 2056605650 in words is "two billion, fifty-six million, six hundred five thousand, six hundred fifty".