Search a number
BaseRepresentation
bin1011100110100101
32102012012
423212211
53010100
61004005
7255362
oct134645
972165
1047525
1132785
1223605
131882a
1413469
15e135
hexb9a5

47525 has 6 divisors (see below), whose sum is σ = 58962. Its totient is φ = 38000.

The previous prime is 47521. The next prime is 47527. The reversal of 47525 is 52574.

47525 = 312 + 322 + ... + 552.

It is a Cunningham number, because it is equal to 2182+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 47524 = 1^2 + 218^2 .

It is not a de Polignac number, because 47525 - 22 = 47521 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 47525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47521) 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, 926 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (9827).

247525 is an apocalyptic number.

It is an amenable number.

47525 is a deficient number, since it is larger than the sum of its proper divisors (11437).

47525 is a wasteful number, since it uses less digits than its factorization.

47525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1906 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 47525 is about 218.0022935659. The cubic root of 47525 is about 36.2221347489. Note that the first 3 decimals are identical.

The spelling of 47525 in words is "forty-seven thousand, five hundred twenty-five".

Divisors: 1 5 25 1901 9505 47525