2051627497 has 2 divisors, whose sum is σ = 2051627498. Its totient is φ = 2051627496.

The previous prime is 2051627491. The next prime is 2051627519. The reversal of 2051627497 is 7947261502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1545197481 + 506430016 = 39309^2 + 22504^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051627497 - 2³ = 2051627489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051627491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025813748 + 1025813749.

It is an arithmetic number, because the mean of its divisors is an integer number (1025813749).

Almost surely, 2^2051627497 is an apocalyptic number.

It is an amenable number.

2051627497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051627497 is an equidigital number, since it uses as much as digits as its factorization.

2051627497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 2051627497 is about 45294.8948227060. The cubic root of 2051627497 is about 1270.6701770075.

Adding to 2051627497 its reverse (7947261502), we get a palindrome (9998888999).

The spelling of 2051627497 in words is "two billion, fifty-one million, six hundred twenty-seven thousand, four hundred ninety-seven".