2056525897 has 4 divisors (see below), whose sum is σ = 2112107716. Its totient is φ = 2000944080.

The previous prime is 2056525873. The next prime is 2056525907. The reversal of 2056525897 is 7985256502.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1821240976 + 235284921 = 42676^2 + 15339^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056525897 - 2²⁷ = 1922308169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056525897.

It is not an unprimeable number, because it can be changed into a prime (2056525297) 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 in 3 ways as a sum of consecutive naturals, for example, 27790854 + ... + 27790927.

It is an arithmetic number, because the mean of its divisors is an integer number (528026929).

Almost surely, 2^2056525897 is an apocalyptic number.

It is an amenable number.

2056525897 is a deficient number, since it is larger than the sum of its proper divisors (55581819).

2056525897 is an equidigital number, since it uses as much as digits as its factorization.

2056525897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55581818.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 2056525897 is about 45348.9349048023. The cubic root of 2056525897 is about 1271.6806436991.

The spelling of 2056525897 in words is "two billion, fifty-six million, five hundred twenty-five thousand, eight hundred ninety-seven".