13125450552505 has 32 divisors (see below), whose sum is σ = 16184388705408. Its totient is φ = 10212717580800.

The previous prime is 13125450552503. The next prime is 13125450552517. The reversal of 13125450552505 is 50525505452131.

It is not a de Polignac number, because 13125450552505 - 2¹ = 13125450552503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125450552503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433268139 + ... + 433298431.

It is an arithmetic number, because the mean of its divisors is an integer number (505762147044).

Almost surely, 2^{13125450552505} is an apocalyptic number.

It is an amenable number.

13125450552505 is a deficient number, since it is larger than the sum of its proper divisors (3058938152903).

13125450552505 is a wasteful number, since it uses less digits than its factorization.

13125450552505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36777.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 13125450552505 in words is "thirteen trillion, one hundred twenty-five billion, four hundred fifty million, five hundred fifty-two thousand, five hundred five".