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55578053075 = 5212291808887
BaseRepresentation
bin110011110000101101…
…011100100111010011
312022110022220121221012
4303300231130213103
51402310440144300
641310542321135
74005163441106
oct636055344723
9168408817835
1055578053075
11216303a8976
12a930b891ab
1353195b184c
1429934a473d
1516a4431435
hexcf0b5c9d3

55578053075 has 12 divisors (see below), whose sum is σ = 68972899440. Its totient is φ = 44426240160.

The previous prime is 55578053059. The next prime is 55578053077. The reversal of 55578053075 is 57035087555.

It is not a de Polignac number, because 55578053075 - 24 = 55578053059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55578053077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873719 + ... + 935168.

It is an arithmetic number, because the mean of its divisors is an integer number (5747741620).

Almost surely, 255578053075 is an apocalyptic number.

55578053075 is a deficient number, since it is larger than the sum of its proper divisors (13394846365).

55578053075 is a wasteful number, since it uses less digits than its factorization.

55578053075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810126 (or 1810121 counting only the distinct ones).

The product of its (nonzero) digits is 3675000, while the sum is 50.

The spelling of 55578053075 in words is "fifty-five billion, five hundred seventy-eight million, fifty-three thousand, seventy-five".

Divisors: 1 5 25 1229 6145 30725 1808887 9044435 45222175 2223122123 11115610615 55578053075