6541545425 has 24 divisors (see below), whose sum is σ = 8354376000. Its totient is φ = 5077356480.

The previous prime is 6541545419. The next prime is 6541545427. The reversal of 6541545425 is 5245451456.

It is not a de Polignac number, because 6541545425 - 2²⁴ = 6524768209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6541545427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322226 + ... + 341924.

It is an arithmetic number, because the mean of its divisors is an integer number (348099000).

Almost surely, 2^6541545425 is an apocalyptic number.

It is an amenable number.

6541545425 is a deficient number, since it is larger than the sum of its proper divisors (1812830575).

6541545425 is a wasteful number, since it uses less digits than its factorization.

6541545425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20105 (or 20100 counting only the distinct ones).

The product of its digits is 480000, while the sum is 41.

The square root of 6541545425 is about 80879.8208764090. The cubic root of 6541545425 is about 1870.2232592068.

The spelling of 6541545425 in words is "six billion, five hundred forty-one million, five hundred forty-five thousand, four hundred twenty-five".