7259248081 has 8 divisors (see below), whose sum is σ = 7697902824. Its totient is φ = 6821886720.

The previous prime is 7259248067. The next prime is 7259248103. The reversal of 7259248081 is 1808429527.

It can be written as a sum of positive squares in 4 ways, for example, as 5298529681 + 1960718400 = 72791^2 + 44280^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7259248081 - 2²⁹ = 6722377169 is a prime.

It is a super-2 number, since 2×7259248081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7259248681) 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, 311770 + ... + 334243.

It is an arithmetic number, because the mean of its divisors is an integer number (962237853).

Almost surely, 2^7259248081 is an apocalyptic number.

It is an amenable number.

7259248081 is a deficient number, since it is larger than the sum of its proper divisors (438654743).

7259248081 is a wasteful number, since it uses less digits than its factorization.

7259248081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646691.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 7259248081 is about 85201.2211238783. The cubic root of 7259248081 is about 1936.2609173285.

The spelling of 7259248081 in words is "seven billion, two hundred fifty-nine million, two hundred forty-eight thousand, eighty-one".