2056774999 has 4 divisors (see below), whose sum is σ = 2057004936. Its totient is φ = 2056545064.

The previous prime is 2056774969. The next prime is 2056775027. The reversal of 2056774999 is 9994776502.

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

It is a cyclic number.

It is not a de Polignac number, because 2056774999 - 2²¹ = 2054677847 is a prime.

It is a super-2 number, since 2×2056774999² = 8460646793022900002, 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 (2056774969) 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, 100984 + ... + 119629.

It is an arithmetic number, because the mean of its divisors is an integer number (514251234).

Almost surely, 2^2056774999 is an apocalyptic number.

2056774999 is a deficient number, since it is larger than the sum of its proper divisors (229937).

2056774999 is an equidigital number, since it uses as much as digits as its factorization.

2056774999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229936.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The square root of 2056774999 is about 45351.6813249520. The cubic root of 2056774999 is about 1271.7319868247.

The spelling of 2056774999 in words is "two billion, fifty-six million, seven hundred seventy-four thousand, nine hundred ninety-nine".