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55496905 = 511099381
BaseRepresentation
bin1101001110110…
…1000011001001
310212102112102221
43103231003021
5103201400110
65301254041
71242500362
oct323550311
9125375387
1055496905
1129365712
1216704321
13b661409
147528b69
154d137da
hex34ed0c9

55496905 has 4 divisors (see below), whose sum is σ = 66596292. Its totient is φ = 44397520.

The previous prime is 55496897. The next prime is 55496963. The reversal of 55496905 is 50969455.

55496905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50969455 = 510193891.

It can be written as a sum of positive squares in 2 ways, for example, as 15085456 + 40411449 = 3884^2 + 6357^2 .

It is not a de Polignac number, because 55496905 - 23 = 55496897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5549686 + ... + 5549695.

It is an arithmetic number, because the mean of its divisors is an integer number (16649073).

Almost surely, 255496905 is an apocalyptic number.

It is an amenable number.

55496905 is a deficient number, since it is larger than the sum of its proper divisors (11099387).

55496905 is a wasteful number, since it uses less digits than its factorization.

55496905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099386.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 55496905 is about 7449.6244871805. The cubic root of 55496905 is about 381.4370906519.

The spelling of 55496905 in words is "fifty-five million, four hundred ninety-six thousand, nine hundred five".

Divisors: 1 5 11099381 55496905