55350277 has 4 divisors (see below), whose sum is σ = 55637260. Its totient is φ = 55063296.

The previous prime is 55350271. The next prime is 55350289. The reversal of 55350277 is 77205355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4456321 + 50893956 = 2111^2 + 7134^2 .

It is a cyclic number.

It is not a de Polignac number, because 55350277 - 2¹¹ = 55348229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55350271) 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, 143202 + ... + 143587.

It is an arithmetic number, because the mean of its divisors is an integer number (13909315).

Almost surely, 2^55350277 is an apocalyptic number.

It is an amenable number.

55350277 is a deficient number, since it is larger than the sum of its proper divisors (286983).

55350277 is a wasteful number, since it uses less digits than its factorization.

55350277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286982.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 55350277 is about 7439.7766767558. The cubic root of 55350277 is about 381.1008635715.

The spelling of 55350277 in words is "fifty-five million, three hundred fifty thousand, two hundred seventy-seven".