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55303125131 = 1132392047733
BaseRepresentation
bin110011100000010100…
…101011100010001011
312021202011120211200202
4303200110223202023
51401230100001011
641223401522415
73665314543652
oct634024534213
9167664524622
1055303125131
11214aa1994a1
12a874aa340b
1352a46519a7
142968b7a199
15168a22623b
hexce052b88b

55303125131 has 8 divisors (see below), whose sum is σ = 56026002240. Its totient is φ = 54584344192.

The previous prime is 55303125121. The next prime is 55303125133. The reversal of 55303125131 is 13152130355.

It is a happy number.

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-55303125131 is a prime.

It is a super-2 number, since 2×553031251312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55303125094 and 55303125103.

It is not an unprimeable number, because it can be changed into a prime (55303125133) 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, 996860 + ... + 1050873.

It is an arithmetic number, because the mean of its divisors is an integer number (7003250280).

Almost surely, 255303125131 is an apocalyptic number.

55303125131 is a deficient number, since it is larger than the sum of its proper divisors (722877109).

55303125131 is a wasteful number, since it uses less digits than its factorization.

55303125131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048085.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 55303125131 its reverse (13152130355), we get a palindrome (68455255486).

The spelling of 55303125131 in words is "fifty-five billion, three hundred three million, one hundred twenty-five thousand, one hundred thirty-one".

Divisors: 1 113 239 27007 2047733 231393829 489408187 55303125131