2575249709 has 16 divisors (see below), whose sum is σ = 2796062976. Its totient is φ = 2362560000.

The previous prime is 2575249681. The next prime is 2575249723. The reversal of 2575249709 is 9079425752.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2575249709 is a prime.

It is a super-3 number, since 3×2575249709³ (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 (2575249609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194129 + ... + 206969.

It is an arithmetic number, because the mean of its divisors is an integer number (174753936).

Almost surely, 2^2575249709 is an apocalyptic number.

It is an amenable number.

2575249709 is a deficient number, since it is larger than the sum of its proper divisors (220813267).

2575249709 is a wasteful number, since it uses less digits than its factorization.

2575249709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 2575249709 is about 50746.9182217009. The cubic root of 2575249709 is about 1370.6916977032.

The spelling of 2575249709 in words is "two billion, five hundred seventy-five million, two hundred forty-nine thousand, seven hundred nine".