Search a number
-
+
53726725 = 5213165313
BaseRepresentation
bin1100110011110…
…0111000000101
310202002121012201
43030330320011
5102223223400
65155314501
71221445453
oct314747005
9122077181
1053726725
1128366758
1215baba31
13b191780
1471c79d3
154ab406a
hex333ce05

53726725 has 12 divisors (see below), whose sum is σ = 71746276. Its totient is φ = 39674880.

The previous prime is 53726723. The next prime is 53726747. The reversal of 53726725 is 52762735.

53726725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 23794884 + 29931841 = 4878^2 + 5471^2 .

It is not a de Polignac number, because 53726725 - 21 = 53726723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53726723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82332 + ... + 82981.

Almost surely, 253726725 is an apocalyptic number.

It is an amenable number.

53726725 is a deficient number, since it is larger than the sum of its proper divisors (18019551).

53726725 is a wasteful number, since it uses less digits than its factorization.

53726725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165336 (or 165331 counting only the distinct ones).

The product of its digits is 88200, while the sum is 37.

The square root of 53726725 is about 7329.8516356063. The cubic root of 53726725 is about 377.3376346622.

The spelling of 53726725 in words is "fifty-three million, seven hundred twenty-six thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 65 325 165313 826565 2149069 4132825 10745345 53726725