133425025 has 12 divisors (see below), whose sum is σ = 165818752. Its totient is φ = 106500240.

The previous prime is 133424981. The next prime is 133425031. The reversal of 133425025 is 520524331.

It is a de Polignac number, because none of the positive numbers 2^k-133425025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5812 + ... + 17338.

Almost surely, 2^133425025 is an apocalyptic number.

It is an amenable number.

133425025 is a deficient number, since it is larger than the sum of its proper divisors (32393727).

133425025 is a wasteful number, since it uses less digits than its factorization.

133425025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000 (or 11995 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 133425025 is about 11550.9750670668. The cubic root of 133425025 is about 510.9900350767.

Adding to 133425025 its reverse (520524331), we get a palindrome (653949356).

The spelling of 133425025 in words is "one hundred thirty-three million, four hundred twenty-five thousand, twenty-five".