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51325 = 522053
BaseRepresentation
bin1100100001111101
32121101221
430201331
53120300
61033341
7302431
oct144175
977357
1051325
113561a
1225851
131a491
14149c1
151031a
hexc87d

51325 has 6 divisors (see below), whose sum is σ = 63674. Its totient is φ = 41040.

The previous prime is 51307. The next prime is 51329. The reversal of 51325 is 52315.

It can be written as a sum of positive squares in 3 ways, for example, as 3364 + 47961 = 58^2 + 219^2 .

It is not a de Polignac number, because 51325 - 27 = 51197 is a prime.

It is a Duffinian number.

51325 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 51299 and 51308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1002 + ... + 1051.

251325 is an apocalyptic number.

It is an amenable number.

51325 is a deficient number, since it is larger than the sum of its proper divisors (12349).

51325 is a wasteful number, since it uses less digits than its factorization.

51325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063 (or 2058 counting only the distinct ones).

The product of its digits is 150, while the sum is 16.

The square root of 51325 is about 226.5502151842. The cubic root of 51325 is about 37.1629047875.

Subtracting 51325 from its reverse (52315), we obtain a triangular number (990 = T44).

The spelling of 51325 in words is "fifty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 2053 10265 51325