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55512545925 = 3524911507469
BaseRepresentation
bin110011101100110011…
…100011101010000101
312022021202122112000110
4303230303203222011
51402142202432200
641300242303233
74003436566134
oct635463435205
9168252575013
1055512545925
11215a7426431
12a913057b19
135308b57015
1429888d191b
15169d7e1b50
hexcecce3a85

55512545925 has 24 divisors (see below), whose sum is σ = 91967729760. Its totient is φ = 29546372800.

The previous prime is 55512545911. The next prime is 55512545927. The reversal of 55512545925 is 52954521555.

It is not a de Polignac number, because 55512545925 - 26 = 55512545861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55512545927) 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 23 ways as a sum of consecutive naturals, for example, 716910 + ... + 790559.

It is an arithmetic number, because the mean of its divisors is an integer number (3831988740).

Almost surely, 255512545925 is an apocalyptic number.

It is an amenable number.

55512545925 is a deficient number, since it is larger than the sum of its proper divisors (36455183835).

55512545925 is a wasteful number, since it uses less digits than its factorization.

55512545925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507973 (or 1507968 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 48.

The spelling of 55512545925 in words is "fifty-five billion, five hundred twelve million, five hundred forty-five thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 491 1473 2455 7365 12275 36825 1507469 4522407 7537345 22612035 37686725 113060175 740167279 2220501837 3700836395 11102509185 18504181975 55512545925