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225994989587 is a prime number
BaseRepresentation
bin1101001001111001011…
…0011110000000010011
3210121022222102222102112
43102132112132000103
512200314204131322
6251453132535535
722220236500443
oct3223626360023
9717288388375
10225994989587
1187931309674
12379713215ab
1318407a2a113
155d2a6885e2
hex349e59e013

225994989587 has 2 divisors, whose sum is σ = 225994989588. Its totient is φ = 225994989586.

The previous prime is 225994989581. The next prime is 225994989707. The reversal of 225994989587 is 785989499522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225994989587 - 28 = 225994989331 is a prime.

It is not a weakly prime, because it can be changed into another prime (225994989581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112997494793 + 112997494794.

It is an arithmetic number, because the mean of its divisors is an integer number (112997494794).

Almost surely, 2225994989587 is an apocalyptic number.

225994989587 is a deficient number, since it is larger than the sum of its proper divisors (1).

225994989587 is an equidigital number, since it uses as much as digits as its factorization.

225994989587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1175731200, while the sum is 77.

The spelling of 225994989587 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, five hundred eighty-seven".