7265553345 has 12 divisors (see below), whose sum is σ = 12593625876. Its totient is φ = 3874961760.

The previous prime is 7265553343. The next prime is 7265553349. The reversal of 7265553345 is 5433555627.

7265553345 is a `hidden beast` number, since 7 + 2 + 65 + 553 + 34 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5354726976 + 1910826369 = 73176^2 + 43713^2 .

It is not a de Polignac number, because 7265553345 - 2¹ = 7265553343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 161456741 = 7265553345 / (7 + 2 + 6 + 5 + 5 + 5 + 3 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 7265553345.

It is not an unprimeable number, because it can be changed into a prime (7265553343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80728326 + ... + 80728415.

It is an arithmetic number, because the mean of its divisors is an integer number (1049468823).

Almost surely, 2^7265553345 is an apocalyptic number.

It is an amenable number.

7265553345 is a deficient number, since it is larger than the sum of its proper divisors (5328072531).

7265553345 is a wasteful number, since it uses less digits than its factorization.

7265553345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161456752 (or 161456749 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 45.

The square root of 7265553345 is about 85238.2152851642. The cubic root of 7265553345 is about 1936.8213566047.

The spelling of 7265553345 in words is "seven billion, two hundred sixty-five million, five hundred fifty-three thousand, three hundred forty-five".