2508686990 has 8 divisors (see below), whose sum is σ = 4515636600. Its totient is φ = 1003474792.

The previous prime is 2508686977. The next prime is 2508687043. The reversal of 2508686990 is 996868052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125434340 + ... + 125434359.

It is an arithmetic number, because the mean of its divisors is an integer number (564454575).

Almost surely, 2^2508686990 is an apocalyptic number.

2508686990 is a deficient number, since it is larger than the sum of its proper divisors (2006949610).

2508686990 is a wasteful number, since it uses less digits than its factorization.

2508686990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250868706.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 2508686990 is about 50086.7945670313. The cubic root of 2508686990 is about 1358.7789989148.

The spelling of 2508686990 in words is "two billion, five hundred eight million, six hundred eighty-six thousand, nine hundred ninety".