305525121 has 24 divisors (see below), whose sum is σ = 463223040. Its totient is φ = 178775520.

The previous prime is 305525117. The next prime is 305525131. The reversal of 305525121 is 121525503.

It is a happy number.

It is not a de Polignac number, because 305525121 - 2² = 305525117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 305525091 and 305525100.

It is not an unprimeable number, because it can be changed into a prime (305525131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3985 + ... + 25038.

It is an arithmetic number, because the mean of its divisors is an integer number (19300960).

Almost surely, 2^305525121 is an apocalyptic number.

It is an amenable number.

305525121 is a deficient number, since it is larger than the sum of its proper divisors (157697919).

305525121 is a wasteful number, since it uses less digits than its factorization.

305525121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29077 (or 29066 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 305525121 is about 17479.2769015197. The cubic root of 305525121 is about 673.5176402684.

The spelling of 305525121 in words is "three hundred five million, five hundred twenty-five thousand, one hundred twenty-one".