1503971113225 has 81 divisors (see below), whose sum is σ = 2231975622933. Its totient is φ = 1002362074560.

The previous prime is 1503971113207. The next prime is 1503971113261. The reversal of 1503971113225 is 5223111793051.

The square root of 1503971113225 is 1226365.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 142772889609 + 1361198223616 = 377853^2 + 1166704^2 .

It is not a de Polignac number, because 1503971113225 - 2⁷ = 1503971113097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1588142202 + ... + 1588143148.

Almost surely, 2^{1503971113225} is an apocalyptic number.

1503971113225 is the 1226365-th square number.

1503971113225 is the 613183-rd centered octagonal number.

It is an amenable number.

1503971113225 is a deficient number, since it is larger than the sum of its proper divisors (728004509708).

1503971113225 is an frugal number, since it uses more digits than its factorization.

1503971113225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 1503971113225 in words is "one trillion, five hundred three billion, nine hundred seventy-one million, one hundred thirteen thousand, two hundred twenty-five".