20153101250 has 20 divisors (see below), whose sum is σ = 37774975326. Its totient is φ = 8061240000.

The previous prime is 20153101223. The next prime is 20153101253. The reversal of 20153101250 is 5210135102.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 46144849 + 20106956401 = 6793^2 + 141799^2 .

It is a super-2 number, since 2×20153101250² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20153101253) 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 9 ways as a sum of consecutive naturals, for example, 8059991 + ... + 8062490.

Almost surely, 2^20153101250 is an apocalyptic number.

20153101250 is a deficient number, since it is larger than the sum of its proper divisors (17621874076).

20153101250 is an equidigital number, since it uses as much as digits as its factorization.

20153101250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122503 (or 16122488 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 20153101250 its reverse (5210135102), we get a palindrome (25363236352).

The spelling of 20153101250 in words is "twenty billion, one hundred fifty-three million, one hundred one thousand, two hundred fifty".