20125534502 has 16 divisors (see below), whose sum is σ = 32005780800. Its totient is φ = 9464561640.

The previous prime is 20125534501. The next prime is 20125534549. The reversal of 20125534502 is 20543552102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125534501) 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 7 ways as a sum of consecutive naturals, for example, 1899824 + ... + 1910387.

It is an arithmetic number, because the mean of its divisors is an integer number (2000361300).

Almost surely, 2^20125534502 is an apocalyptic number.

20125534502 is a deficient number, since it is larger than the sum of its proper divisors (11880246298).

20125534502 is a wasteful number, since it uses less digits than its factorization.

20125534502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810371.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20125534502 in words is "twenty billion, one hundred twenty-five million, five hundred thirty-four thousand, five hundred two".