20550040435 has 8 divisors (see below), whose sum is σ = 24796292976. Its totient is φ = 16349202720.

The previous prime is 20550040417. The next prime is 20550040451. The reversal of 20550040435 is 53404005502.

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

It is not a de Polignac number, because 20550040435 - 2⁵ = 20550040403 is a prime.

It is a Duffinian 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, 11352709 + ... + 11354518.

It is an arithmetic number, because the mean of its divisors is an integer number (3099536622).

Almost surely, 2^20550040435 is an apocalyptic number.

20550040435 is a deficient number, since it is larger than the sum of its proper divisors (4246252541).

20550040435 is a wasteful number, since it uses less digits than its factorization.

20550040435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22707413.

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 20550040435 its reverse (53404005502), we get a palindrome (73954045937).

The spelling of 20550040435 in words is "twenty billion, five hundred fifty million, forty thousand, four hundred thirty-five".