231055425 has 18 divisors (see below), whose sum is σ = 413846342. Its totient is φ = 123229440.

The previous prime is 231055423. The next prime is 231055477. The reversal of 231055425 is 524550132.

It is a happy number.

231055425 is a `hidden beast` number, since 231 + 0 + 5 + 5 + 425 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 41525136 + 189530289 = 6444^2 + 13767^2 .

It is not a de Polignac number, because 231055425 - 2¹ = 231055423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231055421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 513232 + ... + 513681.

Almost surely, 2^231055425 is an apocalyptic number.

231055425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231055425 is a deficient number, since it is larger than the sum of its proper divisors (182790917).

231055425 is a wasteful number, since it uses less digits than its factorization.

231055425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026929 (or 1026921 counting only the distinct ones).

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

The square root of 231055425 is about 15200.5073928471. The cubic root of 231055425 is about 613.6283131005.

The spelling of 231055425 in words is "two hundred thirty-one million, fifty-five thousand, four hundred twenty-five".