2051755774 has 12 divisors (see below), whose sum is σ = 3248140824. Its totient is φ = 971883972.

The previous prime is 2051755759. The next prime is 2051755781. The reversal of 2051755774 is 4775571502.

It is a super-2 number, since 2×2051755774² = 8419403512284678152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2051755774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420162 + ... + 1421605.

It is an arithmetic number, because the mean of its divisors is an integer number (270678402).

Almost surely, 2^2051755774 is an apocalyptic number.

2051755774 is a deficient number, since it is larger than the sum of its proper divisors (1196385050).

2051755774 is a wasteful number, since it uses less digits than its factorization.

2051755774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841807 (or 2841788 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 43.

The square root of 2051755774 is about 45296.3108210812. The cubic root of 2051755774 is about 1270.6966591315.

The spelling of 2051755774 in words is "two billion, fifty-one million, seven hundred fifty-five thousand, seven hundred seventy-four".