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BaseRepresentation
bin1101100101001001
32211022012
431211021
53240000
61105305
7321113
oct154511
984265
1055625
1138879
1228235
131c41b
14163b3
1511735
hexd949

55625 has 10 divisors (see below), whose sum is σ = 70290. Its totient is φ = 44000.

The previous prime is 55621. The next prime is 55631. The reversal of 55625 is 52655.

55625 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 5 ways, for example, as 30976 + 24649 = 176^2 + 157^2 .

It is not a de Polignac number, because 55625 - 22 = 55621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55625.

It is not an unprimeable number, because it can be changed into a prime (55621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 581 + ... + 669.

It is an arithmetic number, because the mean of its divisors is an integer number (7029).

255625 is an apocalyptic number.

It is an amenable number.

55625 is a deficient number, since it is larger than the sum of its proper divisors (14665).

55625 is an frugal number, since it uses more digits than its factorization.

55625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 94 counting only the distinct ones).

The product of its digits is 1500, while the sum is 23.

The square root of 55625 is about 235.8495283014. The cubic root of 55625 is about 38.1730336075.

The spelling of 55625 in words is "fifty-five thousand, six hundred twenty-five".

Divisors: 1 5 25 89 125 445 625 2225 11125 55625