2605136590 has 16 divisors (see below), whose sum is σ = 5359138272. Its totient is φ = 893189664.

The previous prime is 2605136557. The next prime is 2605136603. The reversal of 2605136590 is 956315062.

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, 18608049 + ... + 18608188.

It is an arithmetic number, because the mean of its divisors is an integer number (334946142).

Almost surely, 2^2605136590 is an apocalyptic number.

2605136590 is an abundant number, since it is smaller than the sum of its proper divisors (2754001682).

2605136590 is a wasteful number, since it uses less digits than its factorization.

2605136590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37216251.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 2605136590 is about 51040.5386922983. The cubic root of 2605136590 is about 1375.9738053733.

The spelling of 2605136590 in words is "two billion, six hundred five million, one hundred thirty-six thousand, five hundred ninety".