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55111562453 = 533169328129
BaseRepresentation
bin110011010100111001…
…111011010011010101
312021020211010110002202
4303110321323103111
51400332024444303
641152400014245
73660500360123
oct632471732325
9167224113082
1055111562453
1121411049632
12a820901385
135273a5cbac
14294b552913
1516784d6c88
hexcd4e7b4d5

55111562453 has 8 divisors (see below), whose sum is σ = 56169293400. Its totient is φ = 54054494208.

The previous prime is 55111562423. The next prime is 55111562459. The reversal of 55111562453 is 35426511155.

It can be written as a sum of positive squares in 4 ways, for example, as 9359208049 + 45752354404 = 96743^2 + 213898^2 .

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 55111562453 - 224 = 55094785237 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 (55111562459) 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, 3893 + ... + 332021.

It is an arithmetic number, because the mean of its divisors is an integer number (7021161675).

Almost surely, 255111562453 is an apocalyptic number.

55111562453 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55111562453 is a deficient number, since it is larger than the sum of its proper divisors (1057730947).

55111562453 is a wasteful number, since it uses less digits than its factorization.

55111562453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331351.

The product of its digits is 90000, while the sum is 38.

The spelling of 55111562453 in words is "fifty-five billion, one hundred eleven million, five hundred sixty-two thousand, four hundred fifty-three".

Divisors: 1 53 3169 167957 328129 17390837 1039840801 55111562453