2056421702 has 4 divisors (see below), whose sum is σ = 3084632556. Its totient is φ = 1028210850.

The previous prime is 2056421701. The next prime is 2056421729. The reversal of 2056421702 is 2071246502.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056421701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514105424 + ... + 514105427.

It is an arithmetic number, because the mean of its divisors is an integer number (771158139).

Almost surely, 2^2056421702 is an apocalyptic number.

2056421702 is a deficient number, since it is larger than the sum of its proper divisors (1028210854).

2056421702 is a wasteful number, since it uses less digits than its factorization.

2056421702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028210853.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2056421702 is about 45347.7860760589. The cubic root of 2056421702 is about 1271.6591665399.

The spelling of 2056421702 in words is "two billion, fifty-six million, four hundred twenty-one thousand, seven hundred two".