6161625 has 24 divisors (see below), whose sum is σ = 11109384. Its totient is φ = 3285600.

The previous prime is 6161609. The next prime is 6161629. The reversal of 6161625 is 5261616.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 168921 + 5992704 = 411^2 + 2448^2 .

It is not a de Polignac number, because 6161625 - 2⁴ = 6161609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6161629) 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 23 ways as a sum of consecutive naturals, for example, 1614 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (462891).

Almost surely, 2^6161625 is an apocalyptic number.

It is an amenable number.

6161625 is a deficient number, since it is larger than the sum of its proper divisors (4947759).

6161625 is a wasteful number, since it uses less digits than its factorization.

6161625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498 (or 5485 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 6161625 is about 2482.2620731905. The cubic root of 6161625 is about 183.3292469245.

Subtracting from 6161625 its reverse (5261616), we obtain a palindrome (900009).

It can be divided in two parts, 6161 and 625, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6161625 in words is "six million, one hundred sixty-one thousand, six hundred twenty-five".