20252512520505 has 16 divisors (see below), whose sum is σ = 36004466703360. Its totient is φ = 10801340010864.

The previous prime is 20252512520491. The next prime is 20252512520551. The reversal of 20252512520505 is 50502521525202.

20252512520505 is a `hidden beast` number, since 2 + 0 + 2 + 5 + 2 + 5 + 125 + 20 + 505 = 666.

It is not a de Polignac number, because 20252512520505 - 2⁶ = 20252512520441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20252512520505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75009305497 + ... + 75009305766.

It is an arithmetic number, because the mean of its divisors is an integer number (2250279168960).

Almost surely, 2^{20252512520505} is an apocalyptic number.

It is an amenable number.

20252512520505 is a deficient number, since it is larger than the sum of its proper divisors (15751954182855).

20252512520505 is a wasteful number, since it uses less digits than its factorization.

20252512520505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150018611277 (or 150018611271 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 20252512520505 in words is "twenty trillion, two hundred fifty-two billion, five hundred twelve million, five hundred twenty thousand, five hundred five".