2056997725 has 6 divisors (see below), whose sum is σ = 2550677210. Its totient is φ = 1645598160.

The previous prime is 2056997713. The next prime is 2056997749. The reversal of 2056997725 is 5277996502.

It can be written as a sum of positive squares in 3 ways, for example, as 33977241 + 2023020484 = 5829^2 + 44978^2 .

It is not a de Polignac number, because 2056997725 - 2⁵ = 2056997693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41139930 + ... + 41139979.

Almost surely, 2^2056997725 is an apocalyptic number.

2056997725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2056997725 is a deficient number, since it is larger than the sum of its proper divisors (493679485).

2056997725 is an equidigital number, since it uses as much as digits as its factorization.

2056997725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82279919 (or 82279914 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 52.

The square root of 2056997725 is about 45354.1368013988. The cubic root of 2056997725 is about 1271.7778900073. Note that the first 3 decimals are identical.

The spelling of 2056997725 in words is "two billion, fifty-six million, nine hundred ninety-seven thousand, seven hundred twenty-five".