1325863552057 has 6 divisors (see below), whose sum is σ = 1457354152394. Its totient is φ = 1205330501760.

The previous prime is 1325863552043. The next prime is 1325863552073. The reversal of 1325863552057 is 7502553685231.

It can be written as a sum of positive squares in only one way, i.e., 960251045776 + 365612506281 = 979924^2 + 604659^2 .

It is not a de Polignac number, because 1325863552057 - 2²⁷ = 1325729334329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325863551995 and 1325863552013.

It is not an unprimeable number, because it can be changed into a prime (1325863559057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5478774888 + ... + 5478775129.

Almost surely, 2^{1325863552057} is an apocalyptic number.

It is an amenable number.

1325863552057 is a deficient number, since it is larger than the sum of its proper divisors (131490600337).

1325863552057 is a wasteful number, since it uses less digits than its factorization.

1325863552057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957550039 (or 10957550028 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 1325863552057 in words is "one trillion, three hundred twenty-five billion, eight hundred sixty-three million, five hundred fifty-two thousand, fifty-seven".