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55832449 = 138140429
BaseRepresentation
bin1101010011111…
…0111110000001
310220001120201111
43110332332001
5103243114244
65312403321
71245365551
oct324767601
9126046644
1055832449
1129574822
1216846541
13b74b06a
1475b5161
154d7ce34
hex353ef81

55832449 has 4 divisors (see below), whose sum is σ = 55874260. Its totient is φ = 55790640.

The previous prime is 55832429. The next prime is 55832461. The reversal of 55832449 is 94423855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38526849 + 17305600 = 6207^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 55832449 - 25 = 55832417 is a prime.

It is a super-2 number, since 2×558324492 = 6234524722675202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55832429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18834 + ... + 21595.

It is an arithmetic number, because the mean of its divisors is an integer number (13968565).

Almost surely, 255832449 is an apocalyptic number.

It is an amenable number.

55832449 is a deficient number, since it is larger than the sum of its proper divisors (41811).

55832449 is a wasteful number, since it uses less digits than its factorization.

55832449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41810.

The product of its digits is 172800, while the sum is 40.

The square root of 55832449 is about 7472.1114151222. Note that the first 3 decimals coincide. The cubic root of 55832449 is about 382.2042916474.

The spelling of 55832449 in words is "fifty-five million, eight hundred thirty-two thousand, four hundred forty-nine".

Divisors: 1 1381 40429 55832449