3125855380 has 24 divisors (see below), whose sum is σ = 6565349448. Its totient is φ = 1250141568.

The previous prime is 3125855347. The next prime is 3125855387. The reversal of 3125855380 is 835585213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1092566916 + 2033288464 = 33054^2 + 45092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125855387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 225202 + ... + 238678.

It is an arithmetic number, because the mean of its divisors is an integer number (273556227).

Almost surely, 2^3125855380 is an apocalyptic number.

It is an amenable number.

3125855380 is an abundant number, since it is smaller than the sum of its proper divisors (3439494068).

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

3125855380 is a wasteful number, since it uses less digits than its factorization.

3125855380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25083 (or 25081 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 3125855380 is about 55909.3496653288. The cubic root of 3125855380 is about 1462.1422514063.

The spelling of 3125855380 in words is "three billion, one hundred twenty-five million, eight hundred fifty-five thousand, three hundred eighty".