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25097245 = 58575857
BaseRepresentation
bin101111110111…
…1010000011101
31202020001221121
41133233100131
522411102440
62253530541
7423215545
oct137572035
952201847
1025097245
1113191a28
1284a3a51
135279554
143494325
15230b34a
hex17ef41d

25097245 has 8 divisors (see below), whose sum is σ = 30156984. Its totient is φ = 20050944.

The previous prime is 25097231. The next prime is 25097269. The reversal of 25097245 is 54279052.

It can be written as a sum of positive squares in 4 ways, for example, as 14220441 + 10876804 = 3771^2 + 3298^2 .

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 25097245 - 25 = 25097213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25097245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (3769623).

Almost surely, 225097245 is an apocalyptic number.

It is an amenable number.

25097245 is a deficient number, since it is larger than the sum of its proper divisors (5059739).

25097245 is an equidigital number, since it uses as much as digits as its factorization.

25097245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 25097245 is about 5009.7150617575. The cubic root of 25097245 is about 292.7804114432.

The spelling of 25097245 in words is "twenty-five million, ninety-seven thousand, two hundred forty-five".

Divisors: 1 5 857 4285 5857 29285 5019449 25097245