1245500020025 has 12 divisors (see below), whose sum is σ = 1544434658412. Its totient is φ = 996390575040.

The previous prime is 1245500020007. The next prime is 1245500020033. The reversal of 1245500020025 is 5200200055421.

It can be written as a sum of positive squares in 6 ways, for example, as 4729037824 + 1240770982201 = 68768^2 + 1113899^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1245500020025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245500019976 and 1245500020003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3825947 + ... + 4138703.

It is an arithmetic number, because the mean of its divisors is an integer number (128702888201).

Almost surely, 2^{1245500020025} is an apocalyptic number.

It is an amenable number.

1245500020025 is a deficient number, since it is larger than the sum of its proper divisors (298934638387).

1245500020025 is a wasteful number, since it uses less digits than its factorization.

1245500020025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472060 (or 472055 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 1245500020025 its reverse (5200200055421), we get a palindrome (6445700075446).

The spelling of 1245500020025 in words is "one trillion, two hundred forty-five billion, five hundred million, twenty thousand, twenty-five".