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4002725 = 52295521
BaseRepresentation
bin1111010001001110100101
321112100201002
433101032211
52011041400
6221443045
746010516
oct17211645
97470632
104002725
112294341
121410485
13aa1b9c
14762a0d
15540ed5
hex3d13a5

4002725 has 12 divisors (see below), whose sum is σ = 5135460. Its totient is φ = 3091200.

The previous prime is 4002721. The next prime is 4002727. The reversal of 4002725 is 5272004.

It can be written as a sum of positive squares in 6 ways, for example, as 231361 + 3771364 = 481^2 + 1942^2 .

It is not a de Polignac number, because 4002725 - 22 = 4002721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4002697 and 4002706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2036 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (427955).

Almost surely, 24002725 is an apocalyptic number.

It is an amenable number.

4002725 is a deficient number, since it is larger than the sum of its proper divisors (1132735).

4002725 is a wasteful number, since it uses less digits than its factorization.

4002725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560 (or 5555 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 4002725 is about 2000.6811340141. The cubic root of 4002725 is about 158.7761442464.

Adding to 4002725 its reverse (5272004), we get a palindrome (9274729).

It can be divided in two parts, 400 and 2725, that added together give a 5-th power (3125 = 55).

The spelling of 4002725 in words is "four million, two thousand, seven hundred twenty-five".

Divisors: 1 5 25 29 145 725 5521 27605 138025 160109 800545 4002725