7425530 has 64 divisors (see below), whose sum is σ = 16284672. Its totient is φ = 2384640.

The previous prime is 7425529. The next prime is 7425533. The reversal of 7425530 is 355247.

It is a self number, because there is not a number n which added to its sum of digits gives 7425530.

It is not an unprimeable number, because it can be changed into a prime (7425533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121700 + ... + 121760.

It is an arithmetic number, because the mean of its divisors is an integer number (254448).

Almost surely, 2^7425530 is an apocalyptic number.

7425530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7425530 is an abundant number, since it is smaller than the sum of its proper divisors (8859142).

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

7425530 is a wasteful number, since it uses less digits than its factorization.

7425530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 7425530 is about 2724.9825687516. The cubic root of 7425530 is about 195.0933587588.

The spelling of 7425530 in words is "seven million, four hundred twenty-five thousand, five hundred thirty".