7082251261 has 4 divisors (see below), whose sum is σ = 7097614524. Its totient is φ = 7066888000.

The previous prime is 7082251249. The next prime is 7082251271. The reversal of 7082251261 is 1621522807.

It is a happy number.

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 1985148025 + 5097103236 = 44555^2 + 71394^2 .

It is a cyclic number.

It is not a de Polignac number, because 7082251261 - 2³¹ = 4934767613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7082251201) 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, 7680940 + ... + 7681861.

It is an arithmetic number, because the mean of its divisors is an integer number (1774403631).

Almost surely, 2^7082251261 is an apocalyptic number.

It is an amenable number.

7082251261 is a deficient number, since it is larger than the sum of its proper divisors (15363263).

7082251261 is a wasteful number, since it uses less digits than its factorization.

7082251261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15363262.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 7082251261 is about 84156.1124399173. The cubic root of 7082251261 is about 1920.3944557210.

The spelling of 7082251261 in words is "seven billion, eighty-two million, two hundred fifty-one thousand, two hundred sixty-one".