55280436771 has 48 divisors (see below), whose sum is σ = 87094891008. Its totient is φ = 31091558400.

The previous prime is 55280436763. The next prime is 55280436791. The reversal of 55280436771 is 17763408255.

It is not a de Polignac number, because 55280436771 - 2³ = 55280436763 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55280436771.

It is not an unprimeable number, because it can be changed into a prime (55280436751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6685986 + ... + 6694248.

It is an arithmetic number, because the mean of its divisors is an integer number (1814476896).

Almost surely, 2^55280436771 is an apocalyptic number.

55280436771 is a deficient number, since it is larger than the sum of its proper divisors (31814454237).

55280436771 is a wasteful number, since it uses less digits than its factorization.

55280436771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992 (or 8985 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 55280436771 in words is "fifty-five billion, two hundred eighty million, four hundred thirty-six thousand, seven hundred seventy-one".