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25131201 = 341919993
BaseRepresentation
bin101111111011…
…1100011000001
31202021210112020
41133313203001
522413144301
62254352053
7423416544
oct137674301
952253466
1025131201
1113205497
1284bb629
13528bb44
1434a285b
152316436
hex17f78c1

25131201 has 8 divisors (see below), whose sum is σ = 33589920. Its totient is φ = 16713312.

The previous prime is 25131193. The next prime is 25131209. The reversal of 25131201 is 10213152.

It is an interprime number because it is at equal distance from previous prime (25131193) and next prime (25131209).

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

It is not a de Polignac number, because 25131201 - 23 = 25131193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25131209) 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, 8740 + ... + 11253.

It is an arithmetic number, because the mean of its divisors is an integer number (4198740).

Almost surely, 225131201 is an apocalyptic number.

It is an amenable number.

25131201 is a deficient number, since it is larger than the sum of its proper divisors (8458719).

25131201 is a wasteful number, since it uses less digits than its factorization.

25131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20415.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 25131201 is about 5013.1029313191. The cubic root of 25131201 is about 292.9123936775.

Adding to 25131201 its reverse (10213152), we get a palindrome (35344353).

The spelling of 25131201 in words is "twenty-five million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 3 419 1257 19993 59979 8377067 25131201