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55448910879 = 361302999513
BaseRepresentation
bin110011101001000000…
…110011110000011111
312022010022220112010220
4303221000303300133
51402024410122004
641250050332423
74002034652205
oct635100636037
9168108815126
1055448910879
112157451248a
12a8b588a113
1352c890664b
142980289075
151697e21dd9
hexce9033c1f

55448910879 has 8 divisors (see below), whose sum is σ = 75143879472. Its totient is φ = 36359941440.

The previous prime is 55448910877. The next prime is 55448910911. The reversal of 55448910879 is 97801984455.

55448910879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55448910879 - 21 = 55448910877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55448910877) 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, 151499574 + ... + 151499939.

It is an arithmetic number, because the mean of its divisors is an integer number (9392984934).

Almost surely, 255448910879 is an apocalyptic number.

55448910879 is a deficient number, since it is larger than the sum of its proper divisors (19694968593).

55448910879 is a wasteful number, since it uses less digits than its factorization.

55448910879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302999577.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 55448910879 in words is "fifty-five billion, four hundred forty-eight million, nine hundred ten thousand, eight hundred seventy-nine".

Divisors: 1 3 61 183 302999513 908998539 18482970293 55448910879