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57239760481 is a prime number
BaseRepresentation
bin110101010011110000…
…010110111001100001
312110202010201002221221
4311103300112321201
51414211334313411
642143502415041
74064311636111
oct652360267141
9173663632857
1057239760481
1122303397282
12b115591481
135522941777
142ab005d041
15175026e071
hexd53c16e61

57239760481 has 2 divisors, whose sum is σ = 57239760482. Its totient is φ = 57239760480.

The previous prime is 57239760443. The next prime is 57239760491. The reversal of 57239760481 is 18406793275.

57239760481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57147293025 + 92467456 = 239055^2 + 9616^2 .

It is a cyclic number.

It is not a de Polignac number, because 57239760481 - 229 = 56702889569 is a prime.

It is a super-2 number, since 2×572397604812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57239760491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28619880240 + 28619880241.

It is an arithmetic number, because the mean of its divisors is an integer number (28619880241).

It is a 1-persistent number, because it is pandigital, but 2⋅57239760481 = 114479520962 is not.

Almost surely, 257239760481 is an apocalyptic number.

It is an amenable number.

57239760481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57239760481 is an equidigital number, since it uses as much as digits as its factorization.

57239760481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 57239760481 in words is "fifty-seven billion, two hundred thirty-nine million, seven hundred sixty thousand, four hundred eighty-one".