1575125012513 has 4 divisors (see below), whose sum is σ = 1696288475028. Its totient is φ = 1453961550000.

The previous prime is 1575125012509. The next prime is 1575125012521. The reversal of 1575125012513 is 3152105215751.

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 109555704064 + 1465569308449 = 330992^2 + 1210607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1575125012513 - 2² = 1575125012509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1575125012213) 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, 60581731238 + ... + 60581731263.

It is an arithmetic number, because the mean of its divisors is an integer number (424072118757).

Almost surely, 2^{1575125012513} is an apocalyptic number.

1575125012513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1575125012513 is a deficient number, since it is larger than the sum of its proper divisors (121163462515).

1575125012513 is a wasteful number, since it uses less digits than its factorization.

1575125012513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121163462514.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 1575125012513 in words is "one trillion, five hundred seventy-five billion, one hundred twenty-five million, twelve thousand, five hundred thirteen".