7525740 has 24 divisors (see below), whose sum is σ = 21072240. Its totient is φ = 2006848.

The previous prime is 7525723. The next prime is 7525741. The reversal of 7525740 is 475257.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7525698 and 7525707.

It is not an unprimeable number, because it can be changed into a prime (7525741) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62655 + ... + 62774.

It is an arithmetic number, because the mean of its divisors is an integer number (878010).

Almost surely, 2^7525740 is an apocalyptic number.

It is an amenable number.

7525740 is an abundant number, since it is smaller than the sum of its proper divisors (13546500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7525740 is a wasteful number, since it uses less digits than its factorization.

7525740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125441 (or 125439 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 7525740 is about 2743.3082218373. The cubic root of 7525740 is about 195.9670567984.

The spelling of 7525740 in words is "seven million, five hundred twenty-five thousand, seven hundred forty".