2053789987 has 2 divisors, whose sum is σ = 2053789988. Its totient is φ = 2053789986.

The previous prime is 2053789979. The next prime is 2053790003. The reversal of 2053789987 is 7899873502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2053789987 - 2³ = 2053789979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2053789937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026894993 + 1026894994.

It is an arithmetic number, because the mean of its divisors is an integer number (1026894994).

Almost surely, 2^2053789987 is an apocalyptic number.

2053789987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053789987 is an equidigital number, since it uses as much as digits as its factorization.

2053789987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The square root of 2053789987 is about 45318.7597689963. The cubic root of 2053789987 is about 1271.1164644369.

The spelling of 2053789987 in words is "two billion, fifty-three million, seven hundred eighty-nine thousand, nine hundred eighty-seven".