55312025 has 12 divisors (see below), whose sum is σ = 68772012. Its totient is φ = 44130240.

The previous prime is 55312013. The next prime is 55312039. The reversal of 55312025 is 52021355.

It can be written as a sum of positive squares in 6 ways, for example, as 6270016 + 49042009 = 2504^2 + 7003^2 .

It is not a de Polignac number, because 55312025 - 2¹⁰ = 55311001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7139 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (5731001).

Almost surely, 2^55312025 is an apocalyptic number.

It is an amenable number.

55312025 is a deficient number, since it is larger than the sum of its proper divisors (13459987).

55312025 is a wasteful number, since it uses less digits than its factorization.

55312025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55312025 is about 7437.2054563525. The cubic root of 55312025 is about 381.0130517271.

The spelling of 55312025 in words is "fifty-five million, three hundred twelve thousand, twenty-five".