55275527779 has 8 divisors (see below), whose sum is σ = 55619020800. Its totient is φ = 54932598600.

The previous prime is 55275527777. The next prime is 55275527843. The reversal of 55275527779 is 97772557255.

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

It is a cyclic number.

It is not a de Polignac number, because 55275527779 - 2¹ = 55275527777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55275527777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56572 + ... + 337270.

It is an arithmetic number, because the mean of its divisors is an integer number (6952377600).

Almost surely, 2^55275527779 is an apocalyptic number.

55275527779 is a deficient number, since it is larger than the sum of its proper divisors (343493021).

55275527779 is a wasteful number, since it uses less digits than its factorization.

55275527779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281921.

The product of its digits is 54022500, while the sum is 61.

The spelling of 55275527779 in words is "fifty-five billion, two hundred seventy-five million, five hundred twenty-seven thousand, seven hundred seventy-nine".