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57953081 is a prime number
BaseRepresentation
bin1101110100010…
…0101100111001
311001001022200102
43131010230321
5104313444311
65430045145
71302410264
oct335045471
9131038612
1057953081
112a79300a
12174a97b5
13c011384
1479a7cdb
15514b43b
hex3744b39

57953081 has 2 divisors, whose sum is σ = 57953082. Its totient is φ = 57953080.

The previous prime is 57953041. The next prime is 57953087. The reversal of 57953081 is 18035975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 22657600 = 5941^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 57953081 - 210 = 57952057 is a prime.

It is a super-2 number, since 2×579530812 = 6717119194785122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57953087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28976540 + 28976541.

It is an arithmetic number, because the mean of its divisors is an integer number (28976541).

Almost surely, 257953081 is an apocalyptic number.

It is an amenable number.

57953081 is a deficient number, since it is larger than the sum of its proper divisors (1).

57953081 is an equidigital number, since it uses as much as digits as its factorization.

57953081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 57953081 is about 7612.6920993825. The cubic root of 57953081 is about 386.9832579385.

The spelling of 57953081 in words is "fifty-seven million, nine hundred fifty-three thousand, eighty-one".