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55525071 = 377933469
BaseRepresentation
bin1101001111001…
…1111011001111
310212110222002010
43103303323033
5103203300241
65302032303
71242645450
oct323637317
9125428063
1055525071
1129384898
1216718693
13b671194
147535127
154d1bd16
hex34f3ecf

55525071 has 16 divisors (see below), whose sum is σ = 85683200. Its totient is φ = 31326048.

The previous prime is 55525069. The next prime is 55525073. The reversal of 55525071 is 17052555.

It is an interprime number because it is at equal distance from previous prime (55525069) and next prime (55525073).

It is not a de Polignac number, because 55525071 - 21 = 55525069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55525073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15076 + ... + 18393.

It is an arithmetic number, because the mean of its divisors is an integer number (5355200).

Almost surely, 255525071 is an apocalyptic number.

55525071 is a deficient number, since it is larger than the sum of its proper divisors (30158129).

55525071 is a wasteful number, since it uses less digits than its factorization.

55525071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33558.

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 55525071 is about 7451.5146782382. The cubic root of 55525071 is about 381.5016092052.

The spelling of 55525071 in words is "fifty-five million, five hundred twenty-five thousand, seventy-one".

Divisors: 1 3 7 21 79 237 553 1659 33469 100407 234283 702849 2644051 7932153 18508357 55525071