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54552197 = 77793171
BaseRepresentation
bin1101000000011…
…0011010000101
310210122112112202
43100012122011
5102431132242
65225124245
71231454210
oct320063205
9123575482
1054552197
112887a967
1216329685
13b3c040b
147360777
154bc8932
hex3406685

54552197 has 4 divisors (see below), whose sum is σ = 62345376. Its totient is φ = 46759020.

The previous prime is 54552149. The next prime is 54552203. The reversal of 54552197 is 79125545.

It is a happy number.

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: 79125545 = 515825109.

It is not a de Polignac number, because 54552197 - 28 = 54551941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54552197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54552697) 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, 3896579 + ... + 3896592.

It is an arithmetic number, because the mean of its divisors is an integer number (15586344).

Almost surely, 254552197 is an apocalyptic number.

It is an amenable number.

54552197 is a deficient number, since it is larger than the sum of its proper divisors (7793179).

54552197 is an equidigital number, since it uses as much as digits as its factorization.

54552197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7793178.

The product of its digits is 63000, while the sum is 38.

The square root of 54552197 is about 7385.9459109853. The cubic root of 54552197 is about 379.2603270831.

The spelling of 54552197 in words is "fifty-four million, five hundred fifty-two thousand, one hundred ninety-seven".

Divisors: 1 7 7793171 54552197