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57442499 is a prime number
BaseRepresentation
bin1101101100100…
…0000011000011
311000002101021222
43123020003003
5104201124444
65411105255
71265152562
oct333100303
9130071258
1057442499
112a474444
12172a222b
13bb92b5a
1478b3bd9
155099eee
hex36c80c3

57442499 has 2 divisors, whose sum is σ = 57442500. Its totient is φ = 57442498.

The previous prime is 57442487. The next prime is 57442501. The reversal of 57442499 is 99424475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57442499 - 220 = 56393923 is a prime.

It is a Sophie Germain prime.

Together with 57442501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57442409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28721249 + 28721250.

It is an arithmetic number, because the mean of its divisors is an integer number (28721250).

Almost surely, 257442499 is an apocalyptic number.

57442499 is a deficient number, since it is larger than the sum of its proper divisors (1).

57442499 is an equidigital number, since it uses as much as digits as its factorization.

57442499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 57442499 is about 7579.0829920248. The cubic root of 57442499 is about 385.8434289423.

The spelling of 57442499 in words is "fifty-seven million, four hundred forty-two thousand, four hundred ninety-nine".