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55332440031 = 3111676740607
BaseRepresentation
bin110011100010000100…
…100000011111011111
312021211012202012011210
4303202010200133133
51401310101040111
641230330115503
73666121660101
oct634204403737
9167735665153
1055332440031
11215147a1190
12a88287bb93
1352aa746b9b
14296ca0b571
15168cab70a6
hexce21207df

55332440031 has 8 divisors (see below), whose sum is σ = 80483549184. Its totient is φ = 33534812120.

The previous prime is 55332439999. The next prime is 55332440039. The reversal of 55332440031 is 13004423355.

55332440031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55332440031 - 25 = 55332439999 is a prime.

It is a super-2 number, since 2×553324400312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332440039) 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, 838370271 + ... + 838370336.

It is an arithmetic number, because the mean of its divisors is an integer number (10060443648).

Almost surely, 255332440031 is an apocalyptic number.

55332440031 is a deficient number, since it is larger than the sum of its proper divisors (25151109153).

55332440031 is a wasteful number, since it uses less digits than its factorization.

55332440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676740621.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 55332440031 its reverse (13004423355), we get a palindrome (68336863386).

The spelling of 55332440031 in words is "fifty-five billion, three hundred thirty-two million, four hundred forty thousand, thirty-one".

Divisors: 1 3 11 33 1676740607 5030221821 18444146677 55332440031