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54538789 is a prime number
BaseRepresentation
bin1101000000001…
…1001000100101
310210121212011011
43100003020211
5102430220124
65224542221
71231400134
oct320031045
9123555134
1054538789
1128870888
1216321971
13b3b7296
14735991b
154bc4994
hex3403225

54538789 has 2 divisors, whose sum is σ = 54538790. Its totient is φ = 54538788.

The previous prime is 54538747. The next prime is 54538829. The reversal of 54538789 is 98783545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 5678689 = 6990^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 54538789 - 225 = 20984357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54538709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27269394 + 27269395.

It is an arithmetic number, because the mean of its divisors is an integer number (27269395).

Almost surely, 254538789 is an apocalyptic number.

It is an amenable number.

54538789 is a deficient number, since it is larger than the sum of its proper divisors (1).

54538789 is an equidigital number, since it uses as much as digits as its factorization.

54538789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 54538789 is about 7385.0381854124. The cubic root of 54538789 is about 379.2292526296.

The spelling of 54538789 in words is "fifty-four million, five hundred thirty-eight thousand, seven hundred eighty-nine".