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55280525078 = 279349876741
BaseRepresentation
bin110011011110111110…
…011101111100010110
312021200121001122020202
4303132332131330112
51401203303300303
641221233300502
73664621465412
oct633676357426
9167617048222
1055280525078
1121498462769
12a869404732
13529ca6ac8c
142965b75d42
15168825ec88
hexcdef9df16

55280525078 has 8 divisors (see below), whose sum is σ = 83970418080. Its totient is φ = 27290385720.

The previous prime is 55280525057. The next prime is 55280525089. The reversal of 55280525078 is 87052508255.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174938213 + ... + 174938528.

It is an arithmetic number, because the mean of its divisors is an integer number (10496302260).

Almost surely, 255280525078 is an apocalyptic number.

55280525078 is a deficient number, since it is larger than the sum of its proper divisors (28689893002).

55280525078 is a wasteful number, since it uses less digits than its factorization.

55280525078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349876822.

The product of its (nonzero) digits is 1120000, while the sum is 47.

The spelling of 55280525078 in words is "fifty-five billion, two hundred eighty million, five hundred twenty-five thousand, seventy-eight".

Divisors: 1 2 79 158 349876741 699753482 27640262539 55280525078