Search a number
-
+
54587451791 is a prime number
BaseRepresentation
bin110010110101101010…
…100110100110001111
312012220021220212102202
4302311222212212033
51343243341424131
641024354312115
73641504453525
oct626552464617
9165807825382
1054587451791
1121172214524
12a6b528863b
1351bc2b5642
1428dbac2315
1516474a9bcb
hexcb5aa698f

54587451791 has 2 divisors, whose sum is σ = 54587451792. Its totient is φ = 54587451790.

The previous prime is 54587451769. The next prime is 54587451803. The reversal of 54587451791 is 19715478545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54587451791 - 210 = 54587450767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54587451731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27293725895 + 27293725896.

It is an arithmetic number, because the mean of its divisors is an integer number (27293725896).

Almost surely, 254587451791 is an apocalyptic number.

54587451791 is a deficient number, since it is larger than the sum of its proper divisors (1).

54587451791 is an equidigital number, since it uses as much as digits as its factorization.

54587451791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 56.

The spelling of 54587451791 in words is "fifty-four billion, five hundred eighty-seven million, four hundred fifty-one thousand, seven hundred ninety-one".