20153232502 has 16 divisors (see below), whose sum is σ = 32577414912. Its totient is φ = 9295151040.

The previous prime is 20153232497. The next prime is 20153232503. The reversal of 20153232502 is 20523235102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153232503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225223 + ... + 301714.

It is an arithmetic number, because the mean of its divisors is an integer number (2036088432).

Almost surely, 2^20153232502 is an apocalyptic number.

20153232502 is a deficient number, since it is larger than the sum of its proper divisors (12424182410).

20153232502 is a wasteful number, since it uses less digits than its factorization.

20153232502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528423.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20153232502 its reverse (20523235102), we get a palindrome (40676467604).

The spelling of 20153232502 in words is "twenty billion, one hundred fifty-three million, two hundred thirty-two thousand, five hundred two".