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57253087 is a prime number
BaseRepresentation
bin1101101001100…
…1110011011111
310222201202110201
43122121303133
5104124044322
65403044331
71263433423
oct332316337
9128652421
1057253087
112a355101
12172106a7
13bb27888
147864b83
15505dd27
hex3699cdf

57253087 has 2 divisors, whose sum is σ = 57253088. Its totient is φ = 57253086.

The previous prime is 57253057. The next prime is 57253103. The reversal of 57253087 is 78035275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57253087 - 211 = 57251039 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57253037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28626543 + 28626544.

It is an arithmetic number, because the mean of its divisors is an integer number (28626544).

Almost surely, 257253087 is an apocalyptic number.

57253087 is a deficient number, since it is larger than the sum of its proper divisors (1).

57253087 is an equidigital number, since it uses as much as digits as its factorization.

57253087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 57253087 is about 7566.5769671629. The cubic root of 57253087 is about 385.4188661003.

The spelling of 57253087 in words is "fifty-seven million, two hundred fifty-three thousand, eighty-seven".