1563766325 has 48 divisors (see below), whose sum is σ = 2225428992. Its totient is φ = 1079520000.

The previous prime is 1563766313. The next prime is 1563766327. The reversal of 1563766325 is 5236673651.

It is a happy number.

It is not a de Polignac number, because 1563766325 - 2¹⁸ = 1563504181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563766327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450095 + ... + 453555.

It is an arithmetic number, because the mean of its divisors is an integer number (46363104).

Almost surely, 2^1563766325 is an apocalyptic number.

It is an amenable number.

1563766325 is a deficient number, since it is larger than the sum of its proper divisors (661662667).

1563766325 is a wasteful number, since it uses less digits than its factorization.

1563766325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3561 counting only the distinct ones).

The product of its digits is 680400, while the sum is 44.

The square root of 1563766325 is about 39544.4853930355. The cubic root of 1563766325 is about 1160.7106042870.

The spelling of 1563766325 in words is "one billion, five hundred sixty-three million, seven hundred sixty-six thousand, three hundred twenty-five".