55316225 has 12 divisors (see below), whose sum is σ = 68688684. Its totient is φ = 44190720.

The previous prime is 55316207. The next prime is 55316237. The reversal of 55316225 is 52261355.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 215296 + 55100929 = 464^2 + 7423^2 .

It is not a de Polignac number, because 55316225 - 2¹² = 55312129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26417 + ... + 28433.

It is an arithmetic number, because the mean of its divisors is an integer number (5724057).

Almost surely, 2^55316225 is an apocalyptic number.

It is an amenable number.

55316225 is a deficient number, since it is larger than the sum of its proper divisors (13372459).

55316225 is a wasteful number, since it uses less digits than its factorization.

55316225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3119 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 55316225 is about 7437.4878151161. The cubic root of 55316225 is about 381.0226952861.

The spelling of 55316225 in words is "fifty-five million, three hundred sixteen thousand, two hundred twenty-five".