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55192497 = 318397499
BaseRepresentation
bin1101001010001…
…0101110110001
310211212001212120
43102202232301
5103112124442
65250544453
71240062033
oct322425661
9124761776
1055192497
1129177a38
1216598129
13b5859a9
147489c53
154ca34ec
hex34a2bb1

55192497 has 4 divisors (see below), whose sum is σ = 73590000. Its totient is φ = 36794996.

The previous prime is 55192471. The next prime is 55192499. The reversal of 55192497 is 79429155.

55192497 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55192497 - 210 = 55191473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55192499) by changing a digit.

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, 9198747 + ... + 9198752.

It is an arithmetic number, because the mean of its divisors is an integer number (18397500).

Almost surely, 255192497 is an apocalyptic number.

It is an amenable number.

55192497 is a deficient number, since it is larger than the sum of its proper divisors (18397503).

55192497 is a wasteful number, since it uses less digits than its factorization.

55192497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18397502.

The product of its digits is 113400, while the sum is 42.

The square root of 55192497 is about 7429.1652963169. The cubic root of 55192497 is about 380.7384003449.

The spelling of 55192497 in words is "fifty-five million, one hundred ninety-two thousand, four hundred ninety-seven".

Divisors: 1 3 18397499 55192497