2538725658 has 64 divisors (see below), whose sum is σ = 5954135040. Its totient is φ = 706492800.

The previous prime is 2538725621. The next prime is 2538725663. The reversal of 2538725658 is 8565278352.

It is a self number, because there is not a number n which added to its sum of digits gives 2538725658.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2015833 + ... + 2017091.

It is an arithmetic number, because the mean of its divisors is an integer number (93033360).

Almost surely, 2^2538725658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2538725658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977067520).

2538725658 is an abundant number, since it is smaller than the sum of its proper divisors (3415409382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2538725658 is a wasteful number, since it uses less digits than its factorization.

2538725658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483.

The product of its digits is 4032000, while the sum is 51.

The square root of 2538725658 is about 50385.7684073588. The cubic root of 2538725658 is about 1364.1807726314.

The spelling of 2538725658 in words is "two billion, five hundred thirty-eight million, seven hundred twenty-five thousand, six hundred fifty-eight".