163552510525 has 24 divisors (see below), whose sum is σ = 209121302880. Its totient is φ = 126826539840.

The previous prime is 163552510463. The next prime is 163552510531. The reversal of 163552510525 is 525015255361.

It is not a de Polignac number, because 163552510525 - 2¹¹ = 163552508477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633615 + ... + 853564.

It is an arithmetic number, because the mean of its divisors is an integer number (8713387620).

Almost surely, 2^163552510525 is an apocalyptic number.

It is an amenable number.

163552510525 is a deficient number, since it is larger than the sum of its proper divisors (45568792355).

163552510525 is a wasteful number, since it uses less digits than its factorization.

163552510525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487325 (or 1487320 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 40.

Adding to 163552510525 its reverse (525015255361), we get a palindrome (688567765886).

The spelling of 163552510525 in words is "one hundred sixty-three billion, five hundred fifty-two million, five hundred ten thousand, five hundred twenty-five".