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25245197 = 831032953
BaseRepresentation
bin110000001001…
…1011000001101
31202111120220022
41200103120031
522430321242
62301031525
7424403105
oct140233015
952446808
1025245197
11132830aa
1285555a5
1352cb9b3
1434d2205
15233a0d2
hex181360d

25245197 has 8 divisors (see below), whose sum is σ = 25806144. Its totient is φ = 24690528.

The previous prime is 25245139. The next prime is 25245229. The reversal of 25245197 is 79154252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25245197 - 26 = 25245133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25245797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7073 + ... + 10025.

It is an arithmetic number, because the mean of its divisors is an integer number (3225768).

Almost surely, 225245197 is an apocalyptic number.

It is an amenable number.

25245197 is a deficient number, since it is larger than the sum of its proper divisors (560947).

25245197 is a wasteful number, since it uses less digits than its factorization.

25245197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139.

The product of its digits is 25200, while the sum is 35.

The square root of 25245197 is about 5024.4598714688. The cubic root of 25245197 is about 293.3546126379.

The spelling of 25245197 in words is "twenty-five million, two hundred forty-five thousand, one hundred ninety-seven".

Divisors: 1 83 103 2953 8549 245099 304159 25245197