55137266 has 8 divisors (see below), whose sum is σ = 84629424. Its totient is φ = 26927460.

The previous prime is 55137253. The next prime is 55137293. The reversal of 55137266 is 66273155.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320480 + ... + 320651.

It is an arithmetic number, because the mean of its divisors is an integer number (10578678).

Almost surely, 2^55137266 is an apocalyptic number.

55137266 is a deficient number, since it is larger than the sum of its proper divisors (29492158).

55137266 is a wasteful number, since it uses less digits than its factorization.

55137266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641176.

The product of its digits is 37800, while the sum is 35.

The square root of 55137266 is about 7425.4471919205. The cubic root of 55137266 is about 380.6113566219.

The spelling of 55137266 in words is "fifty-five million, one hundred thirty-seven thousand, two hundred sixty-six".