1502561106225 has 72 divisors (see below), whose sum is σ = 2850480191520. Its totient is φ = 753983976960.

The previous prime is 1502561106223. The next prime is 1502561106239. The reversal of 1502561106225 is 5226011652051.

1502561106225 is a `hidden beast` number, since 1 + 5 + 0 + 2 + 561 + 10 + 62 + 25 = 666.

It is not a de Polignac number, because 1502561106225 - 2¹ = 1502561106223 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1502561106225.

It is not an unprimeable number, because it can be changed into a prime (1502561106223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12128646 + ... + 12251904.

It is an arithmetic number, because the mean of its divisors is an integer number (39590002660).

Almost surely, 2^{1502561106225} is an apocalyptic number.

1502561106225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1502561106225 is a deficient number, since it is larger than the sum of its proper divisors (1347919085295).

1502561106225 is a wasteful number, since it uses less digits than its factorization.

1502561106225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126479 (or 126471 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 1502561106225 its reverse (5226011652051), we get a palindrome (6728572758276).

The spelling of 1502561106225 in words is "one trillion, five hundred two billion, five hundred sixty-one million, one hundred six thousand, two hundred twenty-five".