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53051251 = 115390997
BaseRepresentation
bin1100101001011…
…1111101110011
310200211021122011
43022113331303
5102040120001
65133023351
71212633241
oct312277563
9120737564
1053051251
1127a45210
1215924b57
13acb6196
14708d791
1549cdd51
hex3297f73

53051251 has 8 divisors (see below), whose sum is σ = 58966704. Its totient is φ = 47317920.

The previous prime is 53051239. The next prime is 53051267. The reversal of 53051251 is 15215035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53051251 - 225 = 19496819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53051221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44916 + ... + 46081.

It is an arithmetic number, because the mean of its divisors is an integer number (7370838).

Almost surely, 253051251 is an apocalyptic number.

53051251 is a deficient number, since it is larger than the sum of its proper divisors (5915453).

53051251 is a wasteful number, since it uses less digits than its factorization.

53051251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91061.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 53051251 is about 7283.6289718793. The cubic root of 53051251 is about 375.7496140265.

Adding to 53051251 its reverse (15215035), we get a palindrome (68266286).

It can be divided in two parts, 5305 and 1251, that added together give a palindrome (6556).

The spelling of 53051251 in words is "fifty-three million, fifty-one thousand, two hundred fifty-one".

Divisors: 1 11 53 583 90997 1000967 4822841 53051251