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55313105 = 511062621
BaseRepresentation
bin1101001100000…
…0001011010001
310212002012022112
43103000023101
5103130004410
65253315105
71241103461
oct323001321
9125065275
1055313105
112924a611
1216635a95
13b5c8863
1474bbba1
154cc9105
hex34c02d1

55313105 has 4 divisors (see below), whose sum is σ = 66375732. Its totient is φ = 44250480.

The previous prime is 55313099. The next prime is 55313107. The reversal of 55313105 is 50131355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50131355 = 510026271.

It can be written as a sum of positive squares in 2 ways, for example, as 29343889 + 25969216 = 5417^2 + 5096^2 .

It is not a de Polignac number, because 55313105 - 214 = 55296721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55313107) 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, 5531306 + ... + 5531315.

It is an arithmetic number, because the mean of its divisors is an integer number (16593933).

Almost surely, 255313105 is an apocalyptic number.

It is an amenable number.

55313105 is a deficient number, since it is larger than the sum of its proper divisors (11062627).

55313105 is a wasteful number, since it uses less digits than its factorization.

55313105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062626.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 55313105 is about 7437.2780639156. The cubic root of 55313105 is about 381.0155315461.

The spelling of 55313105 in words is "fifty-five million, three hundred thirteen thousand, one hundred five".

Divisors: 1 5 11062621 55313105