20053500433 has 8 divisors (see below), whose sum is σ = 20130824448. Its totient is φ = 19976237424.

The previous prime is 20053500427. The next prime is 20053500443. The reversal of 20053500433 is 33400535002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20053500433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20053500398 and 20053500407.

It is not an unprimeable number, because it can be changed into a prime (20053500443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708960 + ... + 736702.

It is an arithmetic number, because the mean of its divisors is an integer number (2516353056).

Almost surely, 2^20053500433 is an apocalyptic number.

It is an amenable number.

20053500433 is a deficient number, since it is larger than the sum of its proper divisors (77324015).

20053500433 is a wasteful number, since it uses less digits than its factorization.

20053500433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30503.

The product of its (nonzero) digits is 5400, while the sum is 25.

The spelling of 20053500433 in words is "twenty billion, fifty-three million, five hundred thousand, four hundred thirty-three".