2056641519 has 4 divisors (see below), whose sum is σ = 2742188696. Its totient is φ = 1371094344.

The previous prime is 2056641497. The next prime is 2056641527. The reversal of 2056641519 is 9151466502.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2056641519 - 2⁹ = 2056641007 is a prime.

It is a super-2 number, since 2×2056641519² = 8459548675349254722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056641599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342773584 + ... + 342773589.

It is an arithmetic number, because the mean of its divisors is an integer number (685547174).

Almost surely, 2^2056641519 is an apocalyptic number.

2056641519 is a deficient number, since it is larger than the sum of its proper divisors (685547177).

2056641519 is an equidigital number, since it uses as much as digits as its factorization.

2056641519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685547176.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 2056641519 is about 45350.2096908052. The cubic root of 2056641519 is about 1271.7044753958.

The spelling of 2056641519 in words is "two billion, fifty-six million, six hundred forty-one thousand, five hundred nineteen".