2405251889 has 2 divisors, whose sum is σ = 2405251890. Its totient is φ = 2405251888.

The previous prime is 2405251853. The next prime is 2405251897. The reversal of 2405251889 is 9881525042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2399530225 + 5721664 = 48985^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405251889 - 2²⁰ = 2404203313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2405251829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202625944 + 1202625945.

It is an arithmetic number, because the mean of its divisors is an integer number (1202625945).

Almost surely, 2^2405251889 is an apocalyptic number.

It is an amenable number.

2405251889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405251889 is an equidigital number, since it uses as much as digits as its factorization.

2405251889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 2405251889 is about 49043.3674312847. The cubic root of 2405251889 is about 1339.8417963150.

The spelling of 2405251889 in words is "two billion, four hundred five million, two hundred fifty-one thousand, eight hundred eighty-nine".