55250377727 has 4 divisors (see below), whose sum is σ = 55284632520. Its totient is φ = 55216122936.

The previous prime is 55250377607. The next prime is 55250377747. The reversal of 55250377727 is 72777305255.

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

It is a cyclic number.

It is not a de Polignac number, because 55250377727 - 2¹² = 55250373631 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 (55250377747) 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, 17124977 + ... + 17128202.

It is an arithmetic number, because the mean of its divisors is an integer number (13821158130).

Almost surely, 2^55250377727 is an apocalyptic number.

55250377727 is a deficient number, since it is larger than the sum of its proper divisors (34254793).

55250377727 is a wasteful number, since it uses less digits than its factorization.

55250377727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34254792.

The product of its (nonzero) digits is 3601500, while the sum is 50.

The spelling of 55250377727 in words is "fifty-five billion, two hundred fifty million, three hundred seventy-seven thousand, seven hundred twenty-seven".