55266277 has 4 divisors (see below), whose sum is σ = 60290496. Its totient is φ = 50242060.

The previous prime is 55266259. The next prime is 55266293. The reversal of 55266277 is 77266255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55266277 - 2¹⁵ = 55233509 is a prime.

It is a super-2 number, since 2×55266277² = 6108722746881458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55266247) 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, 2512093 + ... + 2512114.

It is an arithmetic number, because the mean of its divisors is an integer number (15072624).

Almost surely, 2^55266277 is an apocalyptic number.

It is an amenable number.

55266277 is a deficient number, since it is larger than the sum of its proper divisors (5024219).

55266277 is a wasteful number, since it uses less digits than its factorization.

55266277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024218.

The product of its digits is 176400, while the sum is 40.

The square root of 55266277 is about 7434.1292025361. The cubic root of 55266277 is about 380.9079787775.

The spelling of 55266277 in words is "fifty-five million, two hundred sixty-six thousand, two hundred seventy-seven".