133625520 has 120 divisors (see below), whose sum is σ = 512886816. Its totient is φ = 30541824.

The previous prime is 133625497. The next prime is 133625539. The reversal of 133625520 is 25526331.

133625520 is a `hidden beast` number, since 1 + 33 + 625 + 5 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8217 + ... + 18296.

Almost surely, 2^133625520 is an apocalyptic number.

133625520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133625520 is an abundant number, since it is smaller than the sum of its proper divisors (379261296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133625520 is a wasteful number, since it uses less digits than its factorization.

133625520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26539 (or 26530 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 133625520 is about 11559.6505137482. The cubic root of 133625520 is about 511.2458583325.

The spelling of 133625520 in words is "one hundred thirty-three million, six hundred twenty-five thousand, five hundred twenty".