55773266 has 4 divisors (see below), whose sum is σ = 83659902. Its totient is φ = 27886632.

The previous prime is 55773253. The next prime is 55773283. The reversal of 55773266 is 66237755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50822641 + 4950625 = 7129^2 + 2225^2 .

It is a super-2 number, since 2×55773266² = 6221314400613512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13943315 + ... + 13943318.

Almost surely, 2^55773266 is an apocalyptic number.

55773266 is a deficient number, since it is larger than the sum of its proper divisors (27886636).

55773266 is a wasteful number, since it uses less digits than its factorization.

55773266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27886635.

The product of its digits is 264600, while the sum is 41.

The square root of 55773266 is about 7468.1501056152. The cubic root of 55773266 is about 382.0691970075.

The spelling of 55773266 in words is "fifty-five million, seven hundred seventy-three thousand, two hundred sixty-six".