7531725 has 24 divisors (see below), whose sum is σ = 12534912. Its totient is φ = 3990400.

The previous prime is 7531721. The next prime is 7531739. The reversal of 7531725 is 5271357.

It is not a de Polignac number, because 7531725 - 2² = 7531721 is a prime.

7531725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7531692 and 7531701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7531721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17260 + ... + 17690.

It is an arithmetic number, because the mean of its divisors is an integer number (522288).

Almost surely, 2^7531725 is an apocalyptic number.

7531725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7531725 is a deficient number, since it is larger than the sum of its proper divisors (5003187).

7531725 is a wasteful number, since it uses less digits than its factorization.

7531725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 672 counting only the distinct ones).

The product of its digits is 7350, while the sum is 30.

The square root of 7531725 is about 2744.3988412765. The cubic root of 7531725 is about 196.0189919817.

It can be divided in two parts, 7531 and 725, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 7531725 in words is "seven million, five hundred thirty-one thousand, seven hundred twenty-five".