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55113525 = 3252397617
BaseRepresentation
bin1101001000111…
…1011100110101
310211201001112200
43102033130311
5103102113100
65245135113
71236312555
oct322173465
9124631480
1055113525
1129123675
121655a499
13b558a6c
147469165
154c89e00
hex348f735

55113525 has 36 divisors (see below), whose sum is σ = 99123492. Its totient is φ = 29272320.

The previous prime is 55113523. The next prime is 55113529. The reversal of 55113525 is 52531155.

It can be written as a sum of positive squares in 6 ways, for example, as 6922161 + 48191364 = 2631^2 + 6942^2 .

It is not a de Polignac number, because 55113525 - 21 = 55113523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55113523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 89017 + ... + 89633.

Almost surely, 255113525 is an apocalyptic number.

It is an amenable number.

55113525 is a deficient number, since it is larger than the sum of its proper divisors (44009967).

55113525 is a wasteful number, since it uses less digits than its factorization.

55113525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1022 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 55113525 is about 7423.8483955426. The cubic root of 55113525 is about 380.5567209094.

The spelling of 55113525 in words is "fifty-five million, one hundred thirteen thousand, five hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 397 617 1191 1851 1985 3085 3573 5553 5955 9255 9925 15425 17865 27765 29775 46275 89325 138825 244949 734847 1224745 2204541 3674235 6123725 11022705 18371175 55113525