601020500550 has 96 divisors (see below), whose sum is σ = 1509766618752. Its totient is φ = 158207047680.

The previous prime is 601020500543. The next prime is 601020500567. The reversal of 601020500550 is 55005020106.

It is a super-2 number, since 2×601020500550² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 601020500550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15131817 + ... + 15171483.

It is an arithmetic number, because the mean of its divisors is an integer number (15726735612).

Almost surely, 2^601020500550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 601020500550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754883309376).

601020500550 is an abundant number, since it is smaller than the sum of its proper divisors (908746118202).

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

601020500550 is a wasteful number, since it uses less digits than its factorization.

601020500550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40982 (or 40977 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 601020500550 its reverse (55005020106), we get a palindrome (656025520656).

The spelling of 601020500550 in words is "six hundred one billion, twenty million, five hundred thousand, five hundred fifty".