55316266 has 8 divisors (see below), whose sum is σ = 87855300. Its totient is φ = 26031168.

The previous prime is 55316237. The next prime is 55316267. The reversal of 55316266 is 66261355.

It can be written as a sum of positive squares in 2 ways, for example, as 55071241 + 245025 = 7421^2 + 495^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1626949 = 55316266 / (5 + 5 + 3 + 1 + 6 + 2 + 6 + 6).

It is not an unprimeable number, because it can be changed into a prime (55316267) 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, 813441 + ... + 813508.

Almost surely, 2^55316266 is an apocalyptic number.

55316266 is a deficient number, since it is larger than the sum of its proper divisors (32539034).

55316266 is a wasteful number, since it uses less digits than its factorization.

55316266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626968.

The product of its digits is 32400, while the sum is 34.

The square root of 55316266 is about 7437.4905714226. The cubic root of 55316266 is about 381.0227894232.

The spelling of 55316266 in words is "fifty-five million, three hundred sixteen thousand, two hundred sixty-six".