321055425 has 18 divisors (see below), whose sum is σ = 575046342. Its totient is φ = 171229440.

The previous prime is 321055411. The next prime is 321055439. The reversal of 321055425 is 524550123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (321055411) and next prime (321055439).

It can be written as a sum of positive squares in 3 ways, for example, as 11048976 + 310006449 = 3324^2 + 17607^2 .

It is not a de Polignac number, because 321055425 - 2⁸ = 321055169 is a prime.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 713232 + ... + 713681.

It is an arithmetic number, because the mean of its divisors is an integer number (31947019).

Almost surely, 2^321055425 is an apocalyptic number.

It is an amenable number.

321055425 is a deficient number, since it is larger than the sum of its proper divisors (253990917).

321055425 is a wasteful number, since it uses less digits than its factorization.

321055425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426929 (or 1426921 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 321055425 is about 17918.0195613243. The cubic root of 321055425 is about 684.7415331897.

The spelling of 321055425 in words is "three hundred twenty-one million, fifty-five thousand, four hundred twenty-five".