7581125 has 8 divisors (see below), whose sum is σ = 9461400. Its totient is φ = 6064800.

The previous prime is 7581113. The next prime is 7581127. The reversal of 7581125 is 5211857.

It can be written as a sum of positive squares in 4 ways, for example, as 2116 + 7579009 = 46^2 + 2753^2 .

It is not a de Polignac number, because 7581125 - 2⁶ = 7581061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7581127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30200 + ... + 30449.

It is an arithmetic number, because the mean of its divisors is an integer number (1182675).

Almost surely, 2^7581125 is an apocalyptic number.

It is an amenable number.

7581125 is a deficient number, since it is larger than the sum of its proper divisors (1880275).

7581125 is an equidigital number, since it uses as much as digits as its factorization.

7581125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60664 (or 60654 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 7581125 is about 2753.3842812074. The cubic root of 7581125 is about 196.4466162093.

The spelling of 7581125 in words is "seven million, five hundred eighty-one thousand, one hundred twenty-five".