2558986990 has 16 divisors (see below), whose sum is σ = 5264201952. Its totient is φ = 877366944.

The previous prime is 2558986987. The next prime is 2558987003. The reversal of 2558986990 is 996898552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18278409 + ... + 18278548.

It is an arithmetic number, because the mean of its divisors is an integer number (329012622).

Almost surely, 2^2558986990 is an apocalyptic number.

2558986990 is an abundant number, since it is smaller than the sum of its proper divisors (2705214962).

2558986990 is a wasteful number, since it uses less digits than its factorization.

2558986990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36556971.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The square root of 2558986990 is about 50586.4308881344. The cubic root of 2558986990 is about 1367.8002936676.

The spelling of 2558986990 in words is "two billion, five hundred fifty-eight million, nine hundred eighty-six thousand, nine hundred ninety".