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57088055 = 511417611
BaseRepresentation
bin1101100111000…
…1100000110111
310222102101002102
43121301200313
5104103304210
65355332315
71262145323
oct331614067
9128371072
1057088055
112a252112
121715109b
13ba9a71b
147820983
155029ea5
hex3671837

57088055 has 4 divisors (see below), whose sum is σ = 68505672. Its totient is φ = 45670440.

The previous prime is 57088051. The next prime is 57088061. The reversal of 57088055 is 55088075.

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

It is not a de Polignac number, because 57088055 - 22 = 57088051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57088051) 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, 5708801 + ... + 5708810.

It is an arithmetic number, because the mean of its divisors is an integer number (17126418).

Almost surely, 257088055 is an apocalyptic number.

57088055 is a deficient number, since it is larger than the sum of its proper divisors (11417617).

57088055 is a wasteful number, since it uses less digits than its factorization.

57088055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417616.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 57088055 is about 7555.6637696499. The cubic root of 57088055 is about 385.0481864689.

The spelling of 57088055 in words is "fifty-seven million, eighty-eight thousand, fifty-five".

Divisors: 1 5 11417611 57088055