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63725 = 522549
BaseRepresentation
bin1111100011101101
310020102012
433203231
54014400
61211005
7353534
oct174355
9106365
1063725
1143972
1230a65
132300c
141931b
1513d35
hexf8ed

63725 has 6 divisors (see below), whose sum is σ = 79050. Its totient is φ = 50960.

The previous prime is 63719. The next prime is 63727. The reversal of 63725 is 52736.

63725 = 1782 + 1792.

It can be written as a sum of positive squares in 3 ways, for example, as 14884 + 48841 = 122^2 + 221^2 .

It is not a de Polignac number, because 63725 - 24 = 63709 is a prime.

It is a d-powerful number, because it can be written as 66 + 32 + 75 + 27 + 53 .

It is a self number, because there is not a number n which added to its sum of digits gives 63725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1250 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (13175).

263725 is an apocalyptic number.

63725 is the 179-th centered square number.

It is an amenable number.

63725 is a deficient number, since it is larger than the sum of its proper divisors (15325).

63725 is a wasteful number, since it uses less digits than its factorization.

63725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2554 counting only the distinct ones).

The product of its digits is 1260, while the sum is 23.

The square root of 63725 is about 252.4381112273. The cubic root of 63725 is about 39.9426260785.

The spelling of 63725 in words is "sixty-three thousand, seven hundred twenty-five".

Divisors: 1 5 25 2549 12745 63725