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55552204001 = 725081223129
BaseRepresentation
bin110011101111001010…
…110101110011100001
312022101112021100200002
4303233022311303201
51402232331012001
641304220305345
74004430641300
oct635712656341
9168345240602
1055552204001
11216178530a8
12a9243a2255
135314131038
14298dc96437
1516a202746b
hexcef2b5ce1

55552204001 has 12 divisors (see below), whose sum is σ = 64634959620. Its totient is φ = 47606590080.

The previous prime is 55552203943. The next prime is 55552204007. The reversal of 55552204001 is 10040225555.

It can be written as a sum of positive squares in 2 ways, for example, as 3269094976 + 52283109025 = 57176^2 + 228655^2 .

It is a de Polignac number, because none of the positive numbers 2k-55552204001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55552204007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137405 + ... + 360533.

It is an arithmetic number, because the mean of its divisors is an integer number (5386246635).

Almost surely, 255552204001 is an apocalyptic number.

It is an amenable number.

55552204001 is a deficient number, since it is larger than the sum of its proper divisors (9082755619).

55552204001 is a wasteful number, since it uses less digits than its factorization.

55552204001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228224 (or 228217 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

Adding to 55552204001 its reverse (10040225555), we get a palindrome (65592429556).

The spelling of 55552204001 in words is "fifty-five billion, five hundred fifty-two million, two hundred four thousand, one".

Divisors: 1 7 49 5081 35567 223129 248969 1561903 10933321 1133718449 7936029143 55552204001