55530525 has 24 divisors (see below), whose sum is σ = 94296544. Its totient is φ = 28814400.

The previous prime is 55530511. The next prime is 55530529. The reversal of 55530525 is 52503555.

It is not a de Polignac number, because 55530525 - 2¹⁴ = 55514141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55530492 and 55530501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530529) 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, 7231 + ... + 12780.

Almost surely, 2^55530525 is an apocalyptic number.

It is an amenable number.

55530525 is a deficient number, since it is larger than the sum of its proper divisors (38766019).

55530525 is a wasteful number, since it uses less digits than its factorization.

55530525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20061 (or 20056 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 55530525 is about 7451.8806351149. The cubic root of 55530525 is about 381.5140999090.

The spelling of 55530525 in words is "fifty-five million, five hundred thirty thousand, five hundred twenty-five".