20051252051650 has 48 divisors (see below), whose sum is σ = 39485167430400. Its totient is φ = 7554447927360.

The previous prime is 20051252051629. The next prime is 20051252051671. The reversal of 20051252051650 is 5615025215002.

It is an interprime number because it is at equal distance from previous prime (20051252051629) and next prime (20051252051671).

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, 60837330 + ... + 61166029.

It is an arithmetic number, because the mean of its divisors is an integer number (822607654800).

Almost surely, 2^{20051252051650} is an apocalyptic number.

20051252051650 is a deficient number, since it is larger than the sum of its proper divisors (19433915378750).

20051252051650 is a wasteful number, since it uses less digits than its factorization.

20051252051650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122003563 (or 122003558 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 20051252051650 its reverse (5615025215002), we get a palindrome (25666277266652).

The spelling of 20051252051650 in words is "twenty trillion, fifty-one billion, two hundred fifty-two million, fifty-one thousand, six hundred fifty".