601001055550 has 48 divisors (see below), whose sum is σ = 1277706069792. Its totient is φ = 206033385600.

The previous prime is 601001055517. The next prime is 601001055563. The reversal of 601001055550 is 55550100106.

It is a super-2 number, since 2×601001055550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3033324 + ... + 3225376.

It is an arithmetic number, because the mean of its divisors is an integer number (26618876454).

Almost surely, 2^601001055550 is an apocalyptic number.

601001055550 is an abundant number, since it is smaller than the sum of its proper divisors (676705014242).

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

601001055550 is a wasteful number, since it uses less digits than its factorization.

601001055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201013 (or 201008 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 601001055550 its reverse (55550100106), we get a palindrome (656551155656).

The spelling of 601001055550 in words is "six hundred one billion, one million, fifty-five thousand, five hundred fifty".