1525251652625 has 8 divisors (see below), whose sum is σ = 1903514062632. Its totient is φ = 1220201322000.

The previous prime is 1525251652621. The next prime is 1525251652627. The reversal of 1525251652625 is 5262561525251.

It can be written as a sum of positive squares in 4 ways, for example, as 260218333456 + 1265033319169 = 510116^2 + 1124737^2 .

It is not a de Polignac number, because 1525251652625 - 2² = 1525251652621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1525251652625.

It is not an unprimeable number, because it can be changed into a prime (1525251652621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6101006486 + ... + 6101006735.

It is an arithmetic number, because the mean of its divisors is an integer number (237939257829).

Almost surely, 2^{1525251652625} is an apocalyptic number.

It is an amenable number.

1525251652625 is a deficient number, since it is larger than the sum of its proper divisors (378262410007).

1525251652625 is an equidigital number, since it uses as much as digits as its factorization.

1525251652625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12202013236 (or 12202013226 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 47.

The spelling of 1525251652625 in words is "one trillion, five hundred twenty-five billion, two hundred fifty-one million, six hundred fifty-two thousand, six hundred twenty-five".