5123505561265 has 96 divisors (see below), whose sum is σ = 8110144224000. Its totient is φ = 3071333002752.

The previous prime is 5123505561263. The next prime is 5123505561329. The reversal of 5123505561265 is 5621655053215.

It is not a de Polignac number, because 5123505561265 - 2¹ = 5123505561263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5123505561263) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 215360991 + ... + 215384779.

It is an arithmetic number, because the mean of its divisors is an integer number (84480669000).

Almost surely, 2^{5123505561265} is an apocalyptic number.

It is an amenable number.

5123505561265 is a deficient number, since it is larger than the sum of its proper divisors (2986638662735).

5123505561265 is a wasteful number, since it uses less digits than its factorization.

5123505561265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27399 (or 27392 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 5123505561265 in words is "five trillion, one hundred twenty-three billion, five hundred five million, five hundred sixty-one thousand, two hundred sixty-five".