2539222085 has 8 divisors (see below), whose sum is σ = 3226305816. Its totient is φ = 1911884800.

The previous prime is 2539222043. The next prime is 2539222087. The reversal of 2539222085 is 5802229352.

2539222085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 80748196 + 2458473889 = 8986^2 + 49583^2 .

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

It is not a de Polignac number, because 2539222085 - 2²⁰ = 2538173509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539222087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14936516 + ... + 14936685.

It is an arithmetic number, because the mean of its divisors is an integer number (403288227).

Almost surely, 2^2539222085 is an apocalyptic number.

It is an amenable number.

2539222085 is a deficient number, since it is larger than the sum of its proper divisors (687083731).

2539222085 is a wasteful number, since it uses less digits than its factorization.

2539222085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29873223.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2539222085 is about 50390.6944286343. The cubic root of 2539222085 is about 1364.2696849602.

The spelling of 2539222085 in words is "two billion, five hundred thirty-nine million, two hundred twenty-two thousand, eighty-five".