4644025 has 9 divisors (see below), whose sum is σ = 5771983. Its totient is φ = 3706600.

The previous prime is 4644011. The next prime is 4644053. The reversal of 4644025 is 5204464.

The square root of 4644025 is 2155.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1671849 + 2972176 = 1293^2 + 1724^2 .

It is not a de Polignac number, because 4644025 - 2⁵ = 4643993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 10560 + ... + 10990.

Almost surely, 2^4644025 is an apocalyptic number.

4644025 is the 2155-th square number.

4644025 is the 1078-th centered octagonal number.

It is an amenable number.

4644025 is a deficient number, since it is larger than the sum of its proper divisors (1127958).

4644025 is an frugal number, since it uses more digits than its factorization.

4644025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The cubic root of 4644025 is about 166.8392323759.

Multiplying 4644025 by its sum of digits (25), we get a square (116100625 = 10775²).

4644025 divided by its sum of digits (25) gives a square (185761 = 431²).

Adding to 4644025 its reverse (5204464), we get a palindrome (9848489).

It can be divided in two parts, 464 and 4025, that added together give a square (4489 = 67²).

The spelling of 4644025 in words is "four million, six hundred forty-four thousand, twenty-five".