3125105220 has 48 divisors (see below), whose sum is σ = 9130746240. Its totient is φ = 797127936.

The previous prime is 3125105201. The next prime is 3125105309. The reversal of 3125105220 is 225015213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130905 + ... + 1133664.

It is an arithmetic number, because the mean of its divisors is an integer number (190223880).

Almost surely, 2^3125105220 is an apocalyptic number.

3125105220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3125105220 is an abundant number, since it is smaller than the sum of its proper divisors (6005641020).

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

3125105220 is a wasteful number, since it uses less digits than its factorization.

3125105220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264604 (or 2264602 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 3125105220 is about 55902.6405458633. The cubic root of 3125105220 is about 1462.0252777301.

It can be divided in two parts, 3125 and 105220, that added together give a triangular number (108345 = T₄₆₅).

The spelling of 3125105220 in words is "three billion, one hundred twenty-five million, one hundred five thousand, two hundred twenty".