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55055055540 = 22357487122557
BaseRepresentation
bin110011010001100010…
…010111101010110100
312021002212210121012010
4303101202113222310
51400223043234130
641143020524220
73656213152002
oct632142275264
9167085717163
1055055055540
1121392164101
12a8059b0670
135265136b54
142943c43a72
1516735740b0
hexcd1897ab4

55055055540 has 48 divisors (see below), whose sum is σ = 154176003072. Its totient is φ = 14679267456.

The previous prime is 55055055527. The next prime is 55055055571. The reversal of 55055055540 is 4555055055.

55055055540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387942 + ... + 510498.

It is an arithmetic number, because the mean of its divisors is an integer number (3212000064).

Almost surely, 255055055540 is an apocalyptic number.

It is an amenable number.

55055055540 is an abundant number, since it is smaller than the sum of its proper divisors (99120947532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55055055540 is a wasteful number, since it uses less digits than its factorization.

55055055540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130056 (or 130054 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 55055055540 in words is "fifty-five billion, fifty-five million, fifty-five thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 7487 14974 22461 29948 37435 44922 74870 89844 112305 122557 149740 224610 245114 367671 449220 490228 612785 735342 1225570 1470684 1838355 2451140 3676710 7353420 917584259 1835168518 2752752777 3670337036 4587921295 5505505554 9175842590 11011011108 13763763885 18351685180 27527527770 55055055540