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52190553 = 317396851
BaseRepresentation
bin1100011100010…
…1110101011001
310122012112222110
43013011311121
5101330044203
65102342533
71202420022
oct307056531
9118175873
1052190553
1127507598
121558aa49
13aa744ac
146d07c49
1548add03
hex31c5d59

52190553 has 4 divisors (see below), whose sum is σ = 69587408. Its totient is φ = 34793700.

The previous prime is 52190543. The next prime is 52190569. The reversal of 52190553 is 35509125.

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 not a de Polignac number, because 52190553 - 28 = 52190297 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 52190553.

It is not an unprimeable number, because it can be changed into a prime (52190503) 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, 8698423 + ... + 8698428.

It is an arithmetic number, because the mean of its divisors is an integer number (17396852).

Almost surely, 252190553 is an apocalyptic number.

It is an amenable number.

52190553 is a deficient number, since it is larger than the sum of its proper divisors (17396855).

52190553 is a wasteful number, since it uses less digits than its factorization.

52190553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396854.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 52190553 is about 7224.3029421530. The cubic root of 52190553 is about 373.7064837498.

Adding to 52190553 its reverse (35509125), we get a palindrome (87699678).

The spelling of 52190553 in words is "fifty-two million, one hundred ninety thousand, five hundred fifty-three".

Divisors: 1 3 17396851 52190553