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57125797 = 173360341
BaseRepresentation
bin1101100111101…
…0101110100101
310222111021212021
43121322232211
5104111011142
65400223141
71262363341
oct331725645
9128437767
1057125797
112a278503
121716aab1
13bab1961
147830621
155036267
hex367aba5

57125797 has 4 divisors (see below), whose sum is σ = 60486156. Its totient is φ = 53765440.

The previous prime is 57125791. The next prime is 57125869. The reversal of 57125797 is 79752175.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27029601 + 30096196 = 5199^2 + 5486^2 .

It is a cyclic number.

It is not a de Polignac number, because 57125797 - 211 = 57123749 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 (57125791) 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, 1680154 + ... + 1680187.

It is an arithmetic number, because the mean of its divisors is an integer number (15121539).

Almost surely, 257125797 is an apocalyptic number.

It is an amenable number.

57125797 is a deficient number, since it is larger than the sum of its proper divisors (3360359).

57125797 is a wasteful number, since it uses less digits than its factorization.

57125797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360358.

The product of its digits is 154350, while the sum is 43.

The square root of 57125797 is about 7558.1609535654. The cubic root of 57125797 is about 385.1330220050.

The spelling of 57125797 in words is "fifty-seven million, one hundred twenty-five thousand, seven hundred ninety-seven".

Divisors: 1 17 3360341 57125797