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55246957 = 173787833
BaseRepresentation
bin1101001011000…
…0000001101101
310211221211120121
43102300001231
5103120400312
65252044541
71240406563
oct322600155
9124854517
1055246957
1129204947
1216603751
13b5a470c
1474a1a33
154cb4707
hex34b006d

55246957 has 8 divisors (see below), whose sum is σ = 60078456. Its totient is φ = 50591232.

The previous prime is 55246931. The next prime is 55246963. The reversal of 55246957 is 75964255.

It can be written as a sum of positive squares in 4 ways, for example, as 31685641 + 23561316 = 5629^2 + 4854^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55246957 - 215 = 55214189 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 (55246157) 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, 43288 + ... + 44545.

It is an arithmetic number, because the mean of its divisors is an integer number (7509807).

Almost surely, 255246957 is an apocalyptic number.

It is an amenable number.

55246957 is a deficient number, since it is larger than the sum of its proper divisors (4831499).

55246957 is a wasteful number, since it uses less digits than its factorization.

55246957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87887.

The product of its digits is 378000, while the sum is 43.

The square root of 55246957 is about 7432.8296765095. The cubic root of 55246957 is about 380.8635876331.

The spelling of 55246957 in words is "fifty-five million, two hundred forty-six thousand, nine hundred fifty-seven".

Divisors: 1 17 37 629 87833 1493161 3249821 55246957