20500074224 has 40 divisors (see below), whose sum is σ = 46358842368. Its totient is φ = 8598813120.

The previous prime is 20500074211. The next prime is 20500074293. The reversal of 20500074224 is 42247000502.

It is a junction number, because it is equal to n+sod(n) for n = 20500074193 and 20500074202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941932 + ... + 1952459.

Almost surely, 2^20500074224 is an apocalyptic number.

It is an amenable number.

20500074224 is an abundant number, since it is smaller than the sum of its proper divisors (25858768144).

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

20500074224 is a wasteful number, since it uses less digits than its factorization.

20500074224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894453 (or 3894447 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

Adding to 20500074224 its reverse (42247000502), we get a palindrome (62747074726).

It can be divided in two parts, 2050007 and 4224, that multiplied together give a palindrome (8659229568).

The spelling of 20500074224 in words is "twenty billion, five hundred million, seventy-four thousand, two hundred twenty-four".