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25211201 = 43661887
BaseRepresentation
bin110000000101…
…1000101000001
31202102212021012
41200023011001
522423224301
62300210305
7424202021
oct140130501
952385235
1025211201
111325a604
128539995
1352b9392
1434c3a81
15232eebb
hex180b141

25211201 has 8 divisors (see below), whose sum is σ = 25865664. Its totient is φ = 24559920.

The previous prime is 25211189. The next prime is 25211203. The reversal of 25211201 is 10211252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25211201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25211203) 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, 27980 + ... + 28866.

It is an arithmetic number, because the mean of its divisors is an integer number (3233208).

Almost surely, 225211201 is an apocalyptic number.

It is an amenable number.

25211201 is a deficient number, since it is larger than the sum of its proper divisors (654463).

25211201 is an equidigital number, since it uses as much as digits as its factorization.

25211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 25211201 is about 5021.0756815647. The cubic root of 25211201 is about 293.2228732108. Note that the first 3 decimals are identical.

Adding to 25211201 its reverse (10211252), we get a palindrome (35422453).

The spelling of 25211201 in words is "twenty-five million, two hundred eleven thousand, two hundred one".

Divisors: 1 43 661 887 28423 38141 586307 25211201