2056611390 has 16 divisors (see below), whose sum is σ = 4935867408. Its totient is φ = 548429696.

The previous prime is 2056611343. The next prime is 2056611419. The reversal of 2056611390 is 931166502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34276827 + ... + 34276886.

It is an arithmetic number, because the mean of its divisors is an integer number (308491713).

Almost surely, 2^2056611390 is an apocalyptic number.

2056611390 is an abundant number, since it is smaller than the sum of its proper divisors (2879256018).

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

2056611390 is a wasteful number, since it uses less digits than its factorization.

2056611390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68553723.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 2056611390 is about 45349.8775081036. The cubic root of 2056611390 is about 1271.6982653731.

Adding to 2056611390 its reverse (931166502), we get a palindrome (2987777892).

The spelling of 2056611390 in words is "two billion, fifty-six million, six hundred eleven thousand, three hundred ninety".