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55141551 = 326126839
BaseRepresentation
bin1101001001011…
…0010010101111
310211202110222200
43102112102233
5103104012201
65245512543
71236460353
oct322262257
9124673880
1055141551
1129142733
1216572753
13b56874a
147475463
154c93386
hex34964af

55141551 has 6 divisors (see below), whose sum is σ = 79648920. Its totient is φ = 36761028.

The previous prime is 55141531. The next prime is 55141561. The reversal of 55141551 is 15514155.

It is not a de Polignac number, because 55141551 - 25 = 55141519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55141531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3063411 + ... + 3063428.

It is an arithmetic number, because the mean of its divisors is an integer number (13274820).

Almost surely, 255141551 is an apocalyptic number.

55141551 is a deficient number, since it is larger than the sum of its proper divisors (24507369).

55141551 is a wasteful number, since it uses less digits than its factorization.

55141551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126845 (or 6126842 counting only the distinct ones).

The product of its digits is 2500, while the sum is 27.

The square root of 55141551 is about 7425.7357211256. The cubic root of 55141551 is about 380.6212161207.

The spelling of 55141551 in words is "fifty-five million, one hundred forty-one thousand, five hundred fifty-one".

Divisors: 1 3 9 6126839 18380517 55141551