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52998853 = 149355697
BaseRepresentation
bin1100101000101…
…1001011000101
310200201121202111
43022023023011
5102031430403
65131541021
71212324415
oct312131305
9120647674
1052998853
1127a09906
12158ba771
13ac9838b
147078645
1549bd56d
hex328b2c5

52998853 has 4 divisors (see below), whose sum is σ = 53354700. Its totient is φ = 52643008.

The previous prime is 52998793. The next prime is 52998889. The reversal of 52998853 is 35889925.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24930049 + 28068804 = 4993^2 + 5298^2 .

It is a cyclic number.

It is not a de Polignac number, because 52998853 - 221 = 50901701 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52998797 and 52998806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52998653) 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, 177700 + ... + 177997.

It is an arithmetic number, because the mean of its divisors is an integer number (13338675).

Almost surely, 252998853 is an apocalyptic number.

It is an amenable number.

52998853 is a deficient number, since it is larger than the sum of its proper divisors (355847).

52998853 is a wasteful number, since it uses less digits than its factorization.

52998853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355846.

The product of its digits is 777600, while the sum is 49.

The square root of 52998853 is about 7280.0311125709. The cubic root of 52998853 is about 375.6258656794.

The spelling of 52998853 in words is "fifty-two million, nine hundred ninety-eight thousand, eight hundred fifty-three".

Divisors: 1 149 355697 52998853