55710225 has 18 divisors (see below), whose sum is σ = 99783606. Its totient is φ = 29712000.

The previous prime is 55710211. The next prime is 55710229. The reversal of 55710225 is 52201755.

It is a happy number.

55710225 is a `hidden beast` number, since 557 + 102 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6471936 + 49238289 = 2544^2 + 7017^2 .

It is not a de Polignac number, because 55710225 - 2⁷ = 55710097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55710229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 123576 + ... + 124025.

Almost surely, 2^55710225 is an apocalyptic number.

It is an amenable number.

55710225 is a deficient number, since it is larger than the sum of its proper divisors (44073381).

55710225 is a wasteful number, since it uses less digits than its factorization.

55710225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247617 (or 247609 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 55710225 is about 7463.9282552822. The cubic root of 55710225 is about 381.9251907087.

The spelling of 55710225 in words is "fifty-five million, seven hundred ten thousand, two hundred twenty-five".