55250566 has 8 divisors (see below), whose sum is σ = 94715280. Its totient is φ = 23678808.

The previous prime is 55250563. The next prime is 55250581. The reversal of 55250566 is 66505255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973221 + ... + 1973248.

It is an arithmetic number, because the mean of its divisors is an integer number (11839410).

Almost surely, 2^55250566 is an apocalyptic number.

55250566 is a deficient number, since it is larger than the sum of its proper divisors (39464714).

55250566 is a wasteful number, since it uses less digits than its factorization.

55250566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946478.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 55250566 is about 7433.0724468419. The cubic root of 55250566 is about 380.8718807400.

The spelling of 55250566 in words is "fifty-five million, two hundred fifty thousand, five hundred sixty-six".