20550403534 has 8 divisors (see below), whose sum is σ = 32448005640. Its totient is φ = 9734401656.

The previous prime is 20550403451. The next prime is 20550403541. The reversal of 20550403534 is 43530405502.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20550403496 and 20550403505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270400009 + ... + 270400084.

It is an arithmetic number, because the mean of its divisors is an integer number (4056000705).

Almost surely, 2^20550403534 is an apocalyptic number.

20550403534 is a deficient number, since it is larger than the sum of its proper divisors (11897602106).

20550403534 is a wasteful number, since it uses less digits than its factorization.

20550403534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540800114.

The product of its (nonzero) digits is 36000, while the sum is 31.

The spelling of 20550403534 in words is "twenty billion, five hundred fifty million, four hundred three thousand, five hundred thirty-four".