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55913079 = 318637693
BaseRepresentation
bin1101010101001…
…0101001110111
310220012200022210
43111102221313
5103303204304
65314224503
71246152615
oct325225167
9126180283
1055913079
112961a362
1216885133
13b778981
1475d66b5
154d96c89
hex3552a77

55913079 has 4 divisors (see below), whose sum is σ = 74550776. Its totient is φ = 37275384.

The previous prime is 55913071. The next prime is 55913087. The reversal of 55913079 is 97031955.

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

It is an interprime number because it is at equal distance from previous prime (55913071) and next prime (55913087).

It is not a de Polignac number, because 55913079 - 23 = 55913071 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 (55913071) 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, 9318844 + ... + 9318849.

It is an arithmetic number, because the mean of its divisors is an integer number (18637694).

Almost surely, 255913079 is an apocalyptic number.

55913079 is a deficient number, since it is larger than the sum of its proper divisors (18637697).

55913079 is a wasteful number, since it uses less digits than its factorization.

55913079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18637696.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 55913079 is about 7477.5048645922. The cubic root of 55913079 is about 382.3881889431.

The spelling of 55913079 in words is "fifty-five million, nine hundred thirteen thousand, seventy-nine".

Divisors: 1 3 18637693 55913079