55305525 has 48 divisors (see below), whose sum is σ = 102136320. Its totient is φ = 26174400.

The previous prime is 55305517. The next prime is 55305533. The reversal of 55305525 is 52550355.

It is an interprime number because it is at equal distance from previous prime (55305517) and next prime (55305533).

It is not a de Polignac number, because 55305525 - 2³ = 55305517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55305492 and 55305501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34696 + ... + 36254.

It is an arithmetic number, because the mean of its divisors is an integer number (2127840).

Almost surely, 2^55305525 is an apocalyptic number.

55305525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55305525 is a deficient number, since it is larger than the sum of its proper divisors (46830795).

55305525 is a wasteful number, since it uses less digits than its factorization.

55305525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 1621 counting only the distinct ones).

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

The square root of 55305525 is about 7436.7684514176. The cubic root of 55305525 is about 380.9981262093.

The spelling of 55305525 in words is "fifty-five million, three hundred five thousand, five hundred twenty-five".