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225104551 = 7275311681
BaseRepresentation
bin11010110101011…
…01001010100111
3120200120111101121
431122231022213
5430111321201
634200434411
75402233330
oct1532551247
9520514347
10225104551
1110607a421
1263478a07
1337836c79
1421c79287
1514b679a1
hexd6ad2a7

225104551 has 8 divisors (see below), whose sum is σ = 257377824. Its totient is φ = 192860160.

The previous prime is 225104513. The next prime is 225104587. The reversal of 225104551 is 155401522.

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 225104551 - 215 = 225071783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225104591) 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, 13431 + ... + 25111.

It is an arithmetic number, because the mean of its divisors is an integer number (32172228).

Almost surely, 2225104551 is an apocalyptic number.

225104551 is a deficient number, since it is larger than the sum of its proper divisors (32273273).

225104551 is a wasteful number, since it uses less digits than its factorization.

225104551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 225104551 is about 15003.4846285788. The cubic root of 225104551 is about 608.3143924213.

The spelling of 225104551 in words is "two hundred twenty-five million, one hundred four thousand, five hundred fifty-one".

Divisors: 1 7 2753 11681 19271 81767 32157793 225104551