1325544415625 has 48 divisors (see below), whose sum is σ = 1719400420080. Its totient is φ = 1020616800000.

The previous prime is 1325544415619. The next prime is 1325544415633. The reversal of 1325544415625 is 5265144455231.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 547062891769 + 778481523856 = 739637^2 + 882316^2 .

It is not a de Polignac number, because 1325544415625 - 2⁴ = 1325544415609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1325544415625.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28705055 + ... + 28751195.

It is an arithmetic number, because the mean of its divisors is an integer number (35820842085).

Almost surely, 2^{1325544415625} is an apocalyptic number.

It is an amenable number.

1325544415625 is a deficient number, since it is larger than the sum of its proper divisors (393856004455).

1325544415625 is an frugal number, since it uses more digits than its factorization.

1325544415625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46512 (or 46492 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 47.

The spelling of 1325544415625 in words is "one trillion, three hundred twenty-five billion, five hundred forty-four million, four hundred fifteen thousand, six hundred twenty-five".