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52402555 = 5311492269
BaseRepresentation
bin1100011111100…
…1100101111011
310122121022210101
43013321211323
5101403340210
65111100231
71204262062
oct307714573
9118538711
1052402555
11276418a7
1215671677
13ab19b3a
146d611d9
154901a3a
hex31f997b

52402555 has 16 divisors (see below), whose sum is σ = 65376000. Its totient is φ = 40279680.

The previous prime is 52402543. The next prime is 52402607. The reversal of 52402555 is 55520425.

It is not a de Polignac number, because 52402555 - 25 = 52402523 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21961 + ... + 24229.

It is an arithmetic number, because the mean of its divisors is an integer number (4086000).

Almost surely, 252402555 is an apocalyptic number.

52402555 is a deficient number, since it is larger than the sum of its proper divisors (12973445).

52402555 is a wasteful number, since it uses less digits than its factorization.

52402555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 52402555 is about 7238.9609060970. The cubic root of 52402555 is about 374.2118082076.

The spelling of 52402555 in words is "fifty-two million, four hundred two thousand, five hundred fifty-five".

Divisors: 1 5 31 149 155 745 2269 4619 11345 23095 70339 338081 351695 1690405 10480511 52402555