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25042201 = 191131111
BaseRepresentation
bin101111110000…
…1110100011001
31202010021102221
41133201310121
522402322301
62252424041
7422566222
oct137416431
952107387
1025042201
1113154638
128478021
13525a492
14347c249
1522e9da1
hex17e1d19

25042201 has 4 divisors (see below), whose sum is σ = 25173504. Its totient is φ = 24910900.

The previous prime is 25042189. The next prime is 25042223. The reversal of 25042201 is 10224052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25042201 - 25 = 25042169 is a prime.

It is a super-2 number, since 2×250422012 = 1254223661848802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25042261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65365 + ... + 65746.

It is an arithmetic number, because the mean of its divisors is an integer number (6293376).

Almost surely, 225042201 is an apocalyptic number.

It is an amenable number.

25042201 is a deficient number, since it is larger than the sum of its proper divisors (131303).

25042201 is a wasteful number, since it uses less digits than its factorization.

25042201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131302.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 25042201 is about 5004.2183205772. The cubic root of 25042201 is about 292.5662099611.

Adding to 25042201 its reverse (10224052), we get a palindrome (35266253).

The spelling of 25042201 in words is "twenty-five million, forty-two thousand, two hundred one".

Divisors: 1 191 131111 25042201