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55050061 = 118535867
BaseRepresentation
bin1101000111111…
…1111101001101
310211120211111011
43101333331031
5103043100221
65243525221
71235626543
oct321777515
9124524434
1055050061
112908aa20
1216529811
13b535c01
14744dd93
154c761e1
hex347ff4d

55050061 has 8 divisors (see below), whose sum is σ = 60135264. Its totient is φ = 49978320.

The previous prime is 55050041. The next prime is 55050067. The reversal of 55050061 is 16005055.

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 55050061 - 223 = 46661453 is a prime.

It is a super-2 number, since 2×550500612 = 6061018432207442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050067) 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, 6450 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (7516908).

Almost surely, 255050061 is an apocalyptic number.

It is an amenable number.

55050061 is a deficient number, since it is larger than the sum of its proper divisors (5085203).

55050061 is a wasteful number, since it uses less digits than its factorization.

55050061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55050061 is about 7419.5728313697. The cubic root of 55050061 is about 380.4105926647.

The spelling of 55050061 in words is "fifty-five million, fifty thousand, sixty-one".

Divisors: 1 11 853 5867 9383 64537 5004551 55050061