4451125541 has 4 divisors (see below), whose sum is σ = 4451290284. Its totient is φ = 4450960800.

The previous prime is 4451125529. The next prime is 4451125543. The reversal of 4451125541 is 1455211544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 845123041 + 3606002500 = 29071^2 + 60050^2 .

It is a cyclic number.

It is not a de Polignac number, because 4451125541 - 2²⁶ = 4384016677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4451125498 and 4451125507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451125543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31280 + ... + 99401.

It is an arithmetic number, because the mean of its divisors is an integer number (1112822571).

Almost surely, 2^4451125541 is an apocalyptic number.

It is an amenable number.

4451125541 is a deficient number, since it is larger than the sum of its proper divisors (164743).

4451125541 is a wasteful number, since it uses less digits than its factorization.

4451125541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164742.

The product of its digits is 16000, while the sum is 32.

The square root of 4451125541 is about 66716.7560737181. The cubic root of 4451125541 is about 1644.9648204645.

The spelling of 4451125541 in words is "four billion, four hundred fifty-one million, one hundred twenty-five thousand, five hundred forty-one".