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53497111 = 107499973
BaseRepresentation
bin1100110000010…
…0110100010111
310201122221020111
43030010310113
5102143401421
65150343451
71216501153
oct314046427
9121587214
1053497111
112821a198
1215abab87
13b1110c5
147168063
154a6aee1
hex3304d17

53497111 has 4 divisors (see below), whose sum is σ = 53997192. Its totient is φ = 52997032.

The previous prime is 53497063. The next prime is 53497127. The reversal of 53497111 is 11179435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11179435 = 52235887.

It is a cyclic number.

It is not a de Polignac number, because 53497111 - 211 = 53495063 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 (53497211) 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, 249880 + ... + 250093.

It is an arithmetic number, because the mean of its divisors is an integer number (13499298).

Almost surely, 253497111 is an apocalyptic number.

53497111 is a deficient number, since it is larger than the sum of its proper divisors (500081).

53497111 is a wasteful number, since it uses less digits than its factorization.

53497111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500080.

The product of its digits is 3780, while the sum is 31.

The square root of 53497111 is about 7314.1719285234. The cubic root of 53497111 is about 376.7993195377.

The spelling of 53497111 in words is "fifty-three million, four hundred ninety-seven thousand, one hundred eleven".

Divisors: 1 107 499973 53497111