125305533 has 6 divisors (see below), whose sum is σ = 180996894. Its totient is φ = 83537016.

The previous prime is 125305519. The next prime is 125305559. The reversal of 125305533 is 335503521.

125305533 is a `hidden beast` number, since 125 + 3 + 0 + 5 + 533 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91642329 + 33663204 = 9573^2 + 5802^2 .

It is not a de Polignac number, because 125305533 - 2⁹ = 125305021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125305497 and 125305506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125305333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6961410 + ... + 6961427.

It is an arithmetic number, because the mean of its divisors is an integer number (30166149).

Almost surely, 2^125305533 is an apocalyptic number.

It is an amenable number.

125305533 is a deficient number, since it is larger than the sum of its proper divisors (55691361).

125305533 is a wasteful number, since it uses less digits than its factorization.

125305533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13922843 (or 13922840 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 125305533 is about 11193.9953993201. The cubic root of 125305533 is about 500.4070458707.

The spelling of 125305533 in words is "one hundred twenty-five million, three hundred five thousand, five hundred thirty-three".