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25230331131487 is a prime number
BaseRepresentation
bin1011011110010011001001…
…11011001011011001011111
310022022222220011020102221121
411233021210323023121133
511301333204232201422
6125354353142111411
75212555061056606
oct557114473133137
9108288804212847
1025230331131487
11804813a196809
1229b5982a1b567
13111029653a041
146332240c8a3d
152db4737638c7
hex16f264ecb65f

25230331131487 has 2 divisors, whose sum is σ = 25230331131488. Its totient is φ = 25230331131486.

The previous prime is 25230331131451. The next prime is 25230331131527. The reversal of 25230331131487 is 78413113303252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25230331131487 - 27 = 25230331131359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25230331831487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615165565743 + 12615165565744.

It is an arithmetic number, because the mean of its divisors is an integer number (12615165565744).

Almost surely, 225230331131487 is an apocalyptic number.

25230331131487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25230331131487 is an equidigital number, since it uses as much as digits as its factorization.

25230331131487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 25230331131487 in words is "twenty-five trillion, two hundred thirty billion, three hundred thirty-one million, one hundred thirty-one thousand, four hundred eighty-seven".