55417266 has 12 divisors (see below), whose sum is σ = 120070782. Its totient is φ = 18472416.

The previous prime is 55417261. The next prime is 55417267. The reversal of 55417266 is 66271455.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53714241 + 1703025 = 7329^2 + 1305^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55417266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55417261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1539351 + ... + 1539386.

Almost surely, 2^55417266 is an apocalyptic number.

55417266 is an abundant number, since it is smaller than the sum of its proper divisors (64653516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55417266 is a wasteful number, since it uses less digits than its factorization.

55417266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078745 (or 3078742 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55417266 is about 7444.2773994525. The cubic root of 55417266 is about 381.2545470747.

The spelling of 55417266 in words is "fifty-five million, four hundred seventeen thousand, two hundred sixty-six".