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53401055 = 5234310799
BaseRepresentation
bin1100101110110…
…1010111011111
310201111001110212
43023231113133
5102132313210
65144323035
71215621131
oct313552737
9121431425
1053401055
1128164004
1215a7347b
13b0a9476
147141051
154a4c805
hex32ed5df

53401055 has 16 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 39909408.

The previous prime is 53401043. The next prime is 53401067. The reversal of 53401055 is 55010435.

It is an interprime number because it is at equal distance from previous prime (53401043) and next prime (53401067).

It is a cyclic number.

It is not a de Polignac number, because 53401055 - 28 = 53400799 is a prime.

It is a super-3 number, since 3×534010553 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 53401055.

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, 455 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 253401055 is an apocalyptic number.

53401055 is a deficient number, since it is larger than the sum of its proper divisors (15027745).

53401055 is a wasteful number, since it uses less digits than its factorization.

53401055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 53401055 is about 7307.6025480317. The cubic root of 53401055 is about 376.5736654862.

The spelling of 53401055 in words is "fifty-three million, four hundred one thousand, fifty-five".

Divisors: 1 5 23 43 115 215 989 4945 10799 53995 248377 464357 1241885 2321785 10680211 53401055