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54860081 is a prime number
BaseRepresentation
bin1101000101000…
…1100100110001
310211020011212212
43101101210301
5103021010311
65235501505
71234205633
oct321214461
9124204785
1054860081
1128a70211
1216457895
13b49a5b3
147400a53
154c39c8b
hex3451931

54860081 has 2 divisors, whose sum is σ = 54860082. Its totient is φ = 54860080.

The previous prime is 54860059. The next prime is 54860093. The reversal of 54860081 is 18006845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 4165681 = 7120^2 + 2041^2 .

It is a cyclic number.

It is not a de Polignac number, because 54860081 - 26 = 54860017 is a prime.

It is a super-2 number, since 2×548600812 = 6019256974653122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54860021) 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, 27430040 + 27430041.

It is an arithmetic number, because the mean of its divisors is an integer number (27430041).

Almost surely, 254860081 is an apocalyptic number.

It is an amenable number.

54860081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54860081 is an equidigital number, since it uses as much as digits as its factorization.

54860081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 54860081 is about 7406.7591428370. The cubic root of 54860081 is about 379.9724841572.

The spelling of 54860081 in words is "fifty-four million, eight hundred sixty thousand, eighty-one".