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55575650789 = 232463226907
BaseRepresentation
bin110011110000100100…
…010010000111100101
312022110011101120121122
4303300210102013211
51402304331311124
641310415023325
74005134144261
oct636044220745
9168404346548
1055575650789
112162a00800a
12a93020ab45
135318c50289
14299303b0a1
1516a410975e
hexcf09121e5

55575650789 has 12 divisors (see below), whose sum is σ = 58222777536. Its totient is φ = 53044269432.

The previous prime is 55575650783. The next prime is 55575650803. The reversal of 55575650789 is 98705657555.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-55575650789 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 (55575650783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131474 + ... + 358380.

It is an arithmetic number, because the mean of its divisors is an integer number (4851898128).

Almost surely, 255575650789 is an apocalyptic number.

It is an amenable number.

55575650789 is a deficient number, since it is larger than the sum of its proper divisors (2647126747).

55575650789 is a wasteful number, since it uses less digits than its factorization.

55575650789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227416 (or 227393 counting only the distinct ones).

The product of its (nonzero) digits is 66150000, while the sum is 62.

The spelling of 55575650789 in words is "fifty-five billion, five hundred seventy-five million, six hundred fifty thousand, seven hundred eighty-nine".

Divisors: 1 23 463 529 10649 226907 244927 5218861 105057941 120033803 2416332643 55575650789