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57825457 = 411410377
BaseRepresentation
bin1101110010010…
…1100010110001
311000210211121121
43130211202301
5104300403312
65423222241
71301336224
oct334454261
9130724547
1057825457
112a706138
1217447981
13bc98261
1479735bb
155123707
hex37258b1

57825457 has 4 divisors (see below), whose sum is σ = 59235876. Its totient is φ = 56415040.

The previous prime is 57825451. The next prime is 57825479. The reversal of 57825457 is 75452875.

57825457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1934881 + 55890576 = 1391^2 + 7476^2 .

It is a cyclic number.

It is not a de Polignac number, because 57825457 - 27 = 57825329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57825451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705148 + ... + 705229.

It is an arithmetic number, because the mean of its divisors is an integer number (14808969).

Almost surely, 257825457 is an apocalyptic number.

It is an amenable number.

57825457 is a deficient number, since it is larger than the sum of its proper divisors (1410419).

57825457 is a wasteful number, since it uses less digits than its factorization.

57825457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410418.

The product of its digits is 392000, while the sum is 43.

The square root of 57825457 is about 7604.3051622091. The cubic root of 57825457 is about 386.6989782583.

The spelling of 57825457 in words is "fifty-seven million, eight hundred twenty-five thousand, four hundred fifty-seven".

Divisors: 1 41 1410377 57825457