20051252051652 has 48 divisors (see below), whose sum is σ = 51985562104000. Its totient is φ = 6683643383040.

The previous prime is 20051252051629. The next prime is 20051252051671. The reversal of 20051252051652 is 25615025215002.

20051252051652 is a `hidden beast` number, since 2 + 0 + 0 + 51 + 25 + 20 + 516 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 5415627 + ... + 8332557.

Almost surely, 2^{20051252051652} is an apocalyptic number.

It is an amenable number.

20051252051652 is an abundant number, since it is smaller than the sum of its proper divisors (31934310052348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20051252051652 is a wasteful number, since it uses less digits than its factorization.

20051252051652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980593 (or 2980585 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 20051252051652 its reverse (25615025215002), we get a palindrome (45666277266654).

The spelling of 20051252051652 in words is "twenty trillion, fifty-one billion, two hundred fifty-two million, fifty-one thousand, six hundred fifty-two".