1563540125 has 48 divisors (see below), whose sum is σ = 2287923456. Its totient is φ = 1045008000.

The previous prime is 1563540107. The next prime is 1563540131. The reversal of 1563540125 is 5210453651.

It is not a de Polignac number, because 1563540125 - 2¹⁰ = 1563539101 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1563540091 and 1563540100.

It is a congruent number.

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, 1470344 + ... + 1471406.

It is an arithmetic number, because the mean of its divisors is an integer number (47665072).

Almost surely, 2^1563540125 is an apocalyptic number.

It is an amenable number.

1563540125 is a deficient number, since it is larger than the sum of its proper divisors (724383331).

1563540125 is an equidigital number, since it uses as much as digits as its factorization.

1563540125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1563540125 is about 39541.6252195076. The cubic root of 1563540125 is about 1160.6546356948.

Adding to 1563540125 its reverse (5210453651), we get a palindrome (6773993776).

The spelling of 1563540125 in words is "one billion, five hundred sixty-three million, five hundred forty thousand, one hundred twenty-five".