Search a number
-
+
25374487 is a prime number
BaseRepresentation
bin110000011001…
…0111100010111
31202202011020211
41200302330113
522443440422
62303510251
7425452045
oct140627427
952664224
1025374487
1113361256
1285b8387
1353457b8
143527395
152363577
hex1832f17

25374487 has 2 divisors, whose sum is σ = 25374488. Its totient is φ = 25374486.

The previous prime is 25374469. The next prime is 25374527. The reversal of 25374487 is 78447352.

It is an a-pointer prime, because the next prime (25374527) can be obtained adding 25374487 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25374487 - 211 = 25372439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25374187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12687243 + 12687244.

It is an arithmetic number, because the mean of its divisors is an integer number (12687244).

Almost surely, 225374487 is an apocalyptic number.

25374487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25374487 is an equidigital number, since it uses as much as digits as its factorization.

25374487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 40.

The square root of 25374487 is about 5037.3095001201. The cubic root of 25374487 is about 293.8545526726.

The spelling of 25374487 in words is "twenty-five million, three hundred seventy-four thousand, four hundred eighty-seven".