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23010225551 = 125918276589
BaseRepresentation
bin10101011011100001…
…000010110110001111
32012101121210120101222
4111123201002312033
5334111104204201
614323140553555
71443133455455
oct253341026617
965347716358
1023010225551
119838744035
1245620b28bb
13222922c5a1
141183dd09d5
158ea17e91b
hex55b842d8f

23010225551 has 4 divisors (see below), whose sum is σ = 23028503400. Its totient is φ = 22991947704.

The previous prime is 23010225541. The next prime is 23010225569. The reversal of 23010225551 is 15552201032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23010225551 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 23010225551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23010225541) 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, 9137036 + ... + 9139553.

It is an arithmetic number, because the mean of its divisors is an integer number (5757125850).

Almost surely, 223010225551 is an apocalyptic number.

23010225551 is a deficient number, since it is larger than the sum of its proper divisors (18277849).

23010225551 is a wasteful number, since it uses less digits than its factorization.

23010225551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18277848.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 23010225551 its reverse (15552201032), we get a palindrome (38562426583).

The spelling of 23010225551 in words is "twenty-three billion, ten million, two hundred twenty-five thousand, five hundred fifty-one".

Divisors: 1 1259 18276589 23010225551