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55456793 = 77922399
BaseRepresentation
bin1101001110001…
…1010000011001
310212100111102022
43103203100121
5103144104133
65300344225
71242242420
oct323432031
9125314368
1055456793
1129338567
12166a5075
13b649092
1475182b7
154d06998
hex34e3419

55456793 has 4 divisors (see below), whose sum is σ = 63379200. Its totient is φ = 47534388.

The previous prime is 55456789. The next prime is 55456823. The reversal of 55456793 is 39765455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39765455 = 57953091.

It is a cyclic number.

It is not a de Polignac number, because 55456793 - 22 = 55456789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55456783) 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, 3961193 + ... + 3961206.

It is an arithmetic number, because the mean of its divisors is an integer number (15844800).

Almost surely, 255456793 is an apocalyptic number.

It is an amenable number.

55456793 is a deficient number, since it is larger than the sum of its proper divisors (7922407).

55456793 is an equidigital number, since it uses as much as digits as its factorization.

55456793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922406.

The product of its digits is 567000, while the sum is 44.

The square root of 55456793 is about 7446.9317842988. The cubic root of 55456793 is about 381.3451702569.

The spelling of 55456793 in words is "fifty-five million, four hundred fifty-six thousand, seven hundred ninety-three".

Divisors: 1 7 7922399 55456793