Search a number
-
+
25065493 is a prime number
BaseRepresentation
bin101111110011…
…1100000010101
31202011110101121
41133213200111
522404043433
62253123541
7423024145
oct137474025
952143347
1025065493
1113170092
1284895b1
135267c6b
143486925
152301c2d
hex17e7815

25065493 has 2 divisors, whose sum is σ = 25065494. Its totient is φ = 25065492.

The previous prime is 25065433. The next prime is 25065511. The reversal of 25065493 is 39456052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23444964 + 1620529 = 4842^2 + 1273^2 .

It is a cyclic number.

It is not a de Polignac number, because 25065493 - 213 = 25057301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25065413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12532746 + 12532747.

It is an arithmetic number, because the mean of its divisors is an integer number (12532747).

Almost surely, 225065493 is an apocalyptic number.

It is an amenable number.

25065493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25065493 is an equidigital number, since it uses as much as digits as its factorization.

25065493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 25065493 is about 5006.5450162762. The cubic root of 25065493 is about 292.6568880998.

The spelling of 25065493 in words is "twenty-five million, sixty-five thousand, four hundred ninety-three".