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55413057 = 372638717
BaseRepresentation
bin1101001101100…
…0100101000001
310212021021102110
43103120211001
5103141204212
65255405533
71242001050
oct323304501
9125237373
1055413057
1129308717
12166838a9
13b6321bb
147506397
154ce8a3c
hex34d8941

55413057 has 8 divisors (see below), whose sum is σ = 84438976. Its totient is φ = 31664592.

The previous prime is 55413023. The next prime is 55413067. The reversal of 55413057 is 75031455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55413057 - 211 = 55411009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55413067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319338 + ... + 1319379.

It is an arithmetic number, because the mean of its divisors is an integer number (10554872).

Almost surely, 255413057 is an apocalyptic number.

It is an amenable number.

55413057 is a deficient number, since it is larger than the sum of its proper divisors (29025919).

55413057 is a wasteful number, since it uses less digits than its factorization.

55413057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638727.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 55413057 is about 7443.9946937112. The cubic root of 55413057 is about 381.2448946015.

The spelling of 55413057 in words is "fifty-five million, four hundred thirteen thousand, fifty-seven".

Divisors: 1 3 7 21 2638717 7916151 18471019 55413057