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55015110233 = 61901887053
BaseRepresentation
bin110011001111001001…
…111111011001011001
312021000002122011112022
4303033021333121121
51400132332011413
641135032424225
73655216502246
oct631711773131
9167002564468
1055015110233
1121371660656
12a7b4548075
135259a8c185
14293c8065cd
15166ecd3608
hexccf27f659

55015110233 has 4 divisors (see below), whose sum is σ = 55916997348. Its totient is φ = 54113223120.

The previous prime is 55015110229. The next prime is 55015110239. The reversal of 55015110233 is 33201151055.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12516463129 + 42498647104 = 111877^2 + 206152^2 .

It is a cyclic number.

It is not a de Polignac number, because 55015110233 - 22 = 55015110229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55015110239) 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, 450943466 + ... + 450943587.

It is an arithmetic number, because the mean of its divisors is an integer number (13979249337).

Almost surely, 255015110233 is an apocalyptic number.

It is an amenable number.

55015110233 is a deficient number, since it is larger than the sum of its proper divisors (901887115).

55015110233 is an equidigital number, since it uses as much as digits as its factorization.

55015110233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901887114.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 55015110233 its reverse (33201151055), we get a palindrome (88216261288).

The spelling of 55015110233 in words is "fifty-five billion, fifteen million, one hundred ten thousand, two hundred thirty-three".

Divisors: 1 61 901887053 55015110233