2051523979 has 2 divisors, whose sum is σ = 2051523980. Its totient is φ = 2051523978.

The previous prime is 2051523967. The next prime is 2051524021. The reversal of 2051523979 is 9793251502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051523979 - 2²³ = 2043135371 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051523079) 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, 1025761989 + 1025761990.

It is an arithmetic number, because the mean of its divisors is an integer number (1025761990).

Almost surely, 2^2051523979 is an apocalyptic number.

2051523979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051523979 is an equidigital number, since it uses as much as digits as its factorization.

2051523979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 2051523979 is about 45293.7520967296. The cubic root of 2051523979 is about 1270.6488054463.

It can be divided in two parts, 2051523 and 979, that added together give a palindrome (2052502).

The spelling of 2051523979 in words is "two billion, fifty-one million, five hundred twenty-three thousand, nine hundred seventy-nine".