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54990918535 = 572635974027
BaseRepresentation
bin110011001101101101…
…101101001110000111
312020221102010002202111
4303031231231032013
51400110133343120
641132410121451
73654504044440
oct631555551607
9166842102674
1054990918535
1121359a38013
12a7a8420287
135254a6bb67
14293950a2c7
15166cb0575a
hexccdb6d387

54990918535 has 16 divisors (see below), whose sum is σ = 75702882816. Its totient is φ = 37564675488.

The previous prime is 54990918529. The next prime is 54990918581. The reversal of 54990918535 is 53581909945.

It is a cyclic number.

It is not a de Polignac number, because 54990918535 - 25 = 54990918503 is a prime.

It is a super-2 number, since 2×549909185352 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54990918535.

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, 2977809 + ... + 2996218.

It is an arithmetic number, because the mean of its divisors is an integer number (4731430176).

Almost surely, 254990918535 is an apocalyptic number.

54990918535 is a deficient number, since it is larger than the sum of its proper divisors (20711964281).

54990918535 is a wasteful number, since it uses less digits than its factorization.

54990918535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974302.

The product of its (nonzero) digits is 8748000, while the sum is 58.

The spelling of 54990918535 in words is "fifty-four billion, nine hundred ninety million, nine hundred eighteen thousand, five hundred thirty-five".

Divisors: 1 5 7 35 263 1315 1841 9205 5974027 29870135 41818189 209090945 1571169101 7855845505 10998183707 54990918535