133544643425025 has 144 divisors (see below), whose sum is σ = 261914440688640. Its totient is φ = 59852861980800.

The previous prime is 133544643425023. The next prime is 133544643425029. The reversal of 133544643425025 is 520524346445331.

It is not a de Polignac number, because 133544643425025 - 2¹ = 133544643425023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133544643425021) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 45275932 + ... + 48135218.

It is an arithmetic number, because the mean of its divisors is an integer number (1818850282560).

Almost surely, 2^{133544643425025} is an apocalyptic number.

133544643425025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133544643425025 is a deficient number, since it is larger than the sum of its proper divisors (128369797263615).

133544643425025 is a wasteful number, since it uses less digits than its factorization.

133544643425025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859564 (or 2859552 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 51.

The spelling of 133544643425025 in words is "one hundred thirty-three trillion, five hundred forty-four billion, six hundred forty-three million, four hundred twenty-five thousand, twenty-five".