2498722909 has 4 divisors (see below), whose sum is σ = 2501171260. Its totient is φ = 2496274560.

The previous prime is 2498722907. The next prime is 2498722973. The reversal of 2498722909 is 9092278942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1769884900 + 728838009 = 42070^2 + 26997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2498722909 - 2¹ = 2498722907 is a prime.

It is a super-3 number, since 3×2498722909³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2498722907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222644 + ... + 1224685.

It is an arithmetic number, because the mean of its divisors is an integer number (625292815).

Almost surely, 2^2498722909 is an apocalyptic number.

It is an amenable number.

2498722909 is a deficient number, since it is larger than the sum of its proper divisors (2448351).

2498722909 is a wasteful number, since it uses less digits than its factorization.

2498722909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448350.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 2498722909 is about 49987.2274586219. The cubic root of 2498722909 is about 1356.9776650470.

The spelling of 2498722909 in words is "two billion, four hundred ninety-eight million, seven hundred twenty-two thousand, nine hundred nine".