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57053866843 = 193002835097
BaseRepresentation
bin110101001000101011…
…001110101101011011
312110021011220201211101
4311020223032231123
51413321242214333
642113222212231
74056563603131
oct651053165533
9173234821741
1057053866843
1122218469676
12b083284077
1354c328612c
142a934ad751
15173dc9e67d
hexd48aceb5b

57053866843 has 4 divisors (see below), whose sum is σ = 60056701960. Its totient is φ = 54051031728.

The previous prime is 57053866813. The next prime is 57053866879. The reversal of 57053866843 is 34866835075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57053866843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57053866813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501417530 + ... + 1501417567.

It is an arithmetic number, because the mean of its divisors is an integer number (15014175490).

Almost surely, 257053866843 is an apocalyptic number.

57053866843 is a deficient number, since it is larger than the sum of its proper divisors (3002835117).

57053866843 is a wasteful number, since it uses less digits than its factorization.

57053866843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002835116.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 57053866843 in words is "fifty-seven billion, fifty-three million, eight hundred sixty-six thousand, eight hundred forty-three".

Divisors: 1 19 3002835097 57053866843