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55535101 = 178331147
BaseRepresentation
bin1101001111011…
…0010111111101
310212111110211121
43103312113331
5103204110401
65302150541
71243016626
oct323662775
9125443747
1055535101
1129391386
1216722451
13b67590b
147538a4d
154d1eca1
hex34f65fd

55535101 has 4 divisors (see below), whose sum is σ = 55568032. Its totient is φ = 55502172.

The previous prime is 55535099. The next prime is 55535143. The reversal of 55535101 is 10153555.

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: 10153555 = 52030711.

It is a cyclic number.

It is not a de Polignac number, because 55535101 - 21 = 55535099 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 (55535201) 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, 13791 + ... + 17356.

It is an arithmetic number, because the mean of its divisors is an integer number (13892008).

Almost surely, 255535101 is an apocalyptic number.

It is an amenable number.

55535101 is a deficient number, since it is larger than the sum of its proper divisors (32931).

55535101 is a wasteful number, since it uses less digits than its factorization.

55535101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32930.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 55535101 is about 7452.1876653772. The cubic root of 55535101 is about 381.5245791939.

Adding to 55535101 its reverse (10153555), we get a palindrome (65688656).

The spelling of 55535101 in words is "fifty-five million, five hundred thirty-five thousand, one hundred one".

Divisors: 1 1783 31147 55535101