601555020 has 96 divisors (see below), whose sum is σ = 1855526400. Its totient is φ = 144399360.

The previous prime is 601555007. The next prime is 601555027. The reversal of 601555020 is 20555106.

It is a super-3 number, since 3×601555020³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (601555027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63556 + ... + 72404.

It is an arithmetic number, because the mean of its divisors is an integer number (19328400).

Almost surely, 2^601555020 is an apocalyptic number.

601555020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 601555020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927763200).

601555020 is an abundant number, since it is smaller than the sum of its proper divisors (1253971380).

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

601555020 is a wasteful number, since it uses less digits than its factorization.

601555020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975 (or 8973 counting only the distinct ones).

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

The square root of 601555020 is about 24526.6186010220. The cubic root of 601555020 is about 844.1606782127.

The spelling of 601555020 in words is "six hundred one million, five hundred fifty-five thousand, twenty".