3125532020 has 48 divisors (see below), whose sum is σ = 7074155088. Its totient is φ = 1153121280.

The previous prime is 3125532017. The next prime is 3125532029. The reversal of 3125532020 is 202355213.

It can be written as a sum of positive squares in 8 ways, for example, as 13454224 + 3112077796 = 3668^2 + 55786^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125532029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381002 + ... + 389118.

It is an arithmetic number, because the mean of its divisors is an integer number (147378231).

Almost surely, 2^3125532020 is an apocalyptic number.

It is an amenable number.

3125532020 is an abundant number, since it is smaller than the sum of its proper divisors (3948623068).

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

3125532020 is a wasteful number, since it uses less digits than its factorization.

3125532020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620 (or 9618 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 3125532020 is about 55906.4577665228. The cubic root of 3125532020 is about 1462.0918316475.

Adding to 3125532020 its reverse (202355213), we get a palindrome (3327887233).

The spelling of 3125532020 in words is "three billion, one hundred twenty-five million, five hundred thirty-two thousand, twenty".