20550255542 has 8 divisors (see below), whose sum is σ = 30935083032. Its totient is φ = 10238561200.

The previous prime is 20550255527. The next prime is 20550255559. The reversal of 20550255542 is 24555205502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18282584 + ... + 18283707.

It is an arithmetic number, because the mean of its divisors is an integer number (3866885379).

Almost surely, 2^20550255542 is an apocalyptic number.

20550255542 is a deficient number, since it is larger than the sum of its proper divisors (10384827490).

20550255542 is a wasteful number, since it uses less digits than its factorization.

20550255542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36566574.

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 20550255542 in words is "twenty billion, five hundred fifty million, two hundred fifty-five thousand, five hundred forty-two".