3155555240 has 64 divisors (see below), whose sum is σ = 7231680000. Its totient is φ = 1238970880.

The previous prime is 3155555203. The next prime is 3155555243. The reversal of 3155555240 is 425555513.

It is a self number, because there is not a number n which added to its sum of digits gives 3155555240.

It is not an unprimeable number, because it can be changed into a prime (3155555243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676436 + ... + 681084.

It is an arithmetic number, because the mean of its divisors is an integer number (112995000).

Almost surely, 2^3155555240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155555240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3615840000).

3155555240 is an abundant number, since it is smaller than the sum of its proper divisors (4076124760).

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

3155555240 is a wasteful number, since it uses less digits than its factorization.

3155555240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4966 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 3155555240 is about 56174.3290124591. The cubic root of 3155555240 is about 1466.7584393906.

It can be divided in two parts, 315 and 5555240, that added together give a palindrome (5555555).

The spelling of 3155555240 in words is "three billion, one hundred fifty-five million, five hundred fifty-five thousand, two hundred forty".