4125020545 has 8 divisors (see below), whose sum is σ = 5001056424. Its totient is φ = 3265995264.

The previous prime is 4125020533. The next prime is 4125020561. The reversal of 4125020545 is 5450205214.

It can be written as a sum of positive squares in 4 ways, for example, as 868834576 + 3256185969 = 29476^2 + 57063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4125020545 - 2⁵ = 4125020513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252114 + ... + 4253083.

It is an arithmetic number, because the mean of its divisors is an integer number (625132053).

Almost surely, 2^4125020545 is an apocalyptic number.

It is an amenable number.

4125020545 is a deficient number, since it is larger than the sum of its proper divisors (876035879).

4125020545 is an equidigital number, since it uses as much as digits as its factorization.

4125020545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8505299.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 4125020545 is about 64226.3228357346. The cubic root of 4125020545 is about 1603.7698275710.

Adding to 4125020545 its reverse (5450205214), we get a palindrome (9575225759).

The spelling of 4125020545 in words is "four billion, one hundred twenty-five million, twenty thousand, five hundred forty-five".