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25157253 = 3112293329
BaseRepresentation
bin101111111110…
…1111010000101
31202100010021010
41133331322011
522420013003
62255112433
7423555522
oct137757205
952303233
1025157253
1113223020
128512719
13529a964
1434ac149
15231e003
hex17fde85

25157253 has 16 divisors (see below), whose sum is σ = 36763200. Its totient is φ = 15175680.

The previous prime is 25157233. The next prime is 25157269. The reversal of 25157253 is 35275152.

It is not a de Polignac number, because 25157253 - 26 = 25157189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25157253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25157203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5893 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (2297700).

Almost surely, 225157253 is an apocalyptic number.

It is an amenable number.

25157253 is a deficient number, since it is larger than the sum of its proper divisors (11605947).

25157253 is a wasteful number, since it uses less digits than its factorization.

25157253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572.

The product of its digits is 10500, while the sum is 30.

The square root of 25157253 is about 5015.7006489622. The cubic root of 25157253 is about 293.0135735926.

The spelling of 25157253 in words is "twenty-five million, one hundred fifty-seven thousand, two hundred fifty-three".

Divisors: 1 3 11 33 229 687 2519 3329 7557 9987 36619 109857 762341 2287023 8385751 25157253