20035554550 has 48 divisors (see below), whose sum is σ = 40679865072. Its totient is φ = 7281014400.

The previous prime is 20035554533. The next prime is 20035554557. The reversal of 20035554550 is 5545553002.

It is a super-2 number, since 2×20035554550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20035554557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920392 + ... + 941908.

It is an arithmetic number, because the mean of its divisors is an integer number (847497189).

Almost surely, 2^20035554550 is an apocalyptic number.

20035554550 is an abundant number, since it is smaller than the sum of its proper divisors (20644310522).

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

20035554550 is a wasteful number, since it uses less digits than its factorization.

20035554550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23233 (or 23228 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 20035554550 in words is "twenty billion, thirty-five million, five hundred fifty-four thousand, five hundred fifty".