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55042595897 = 1012052126557
BaseRepresentation
bin110011010000110010…
…110101110000111001
312021002000100120202212
4303100302311300321
51400211401032042
641141453504505
73656002226342
oct632062656071
9167060316685
1055042595897
1121386123a83
12a8017a2135
135262693893
14294231d0c9
151672412482
hexcd0cb5c39

55042595897 has 8 divisors (see below), whose sum is σ = 55592374152. Its totient is φ = 54492912000.

The previous prime is 55042595891. The next prime is 55042595911. The reversal of 55042595897 is 79859524055.

55042595897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24730393081 + 30312202816 = 157259^2 + 174104^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55042595897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55042595891) 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, 2059343 + ... + 2085899.

It is an arithmetic number, because the mean of its divisors is an integer number (6949046769).

Almost surely, 255042595897 is an apocalyptic number.

It is an amenable number.

55042595897 is a deficient number, since it is larger than the sum of its proper divisors (549778255).

55042595897 is a wasteful number, since it uses less digits than its factorization.

55042595897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47179.

The product of its (nonzero) digits is 22680000, while the sum is 59.

The spelling of 55042595897 in words is "fifty-five billion, forty-two million, five hundred ninety-five thousand, eight hundred ninety-seven".

Divisors: 1 101 20521 26557 2072621 2682257 544976197 55042595897