7425545 has 4 divisors (see below), whose sum is σ = 8910660. Its totient is φ = 5940432.

The previous prime is 7425533. The next prime is 7425547. The reversal of 7425545 is 5455247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 4477456 = 1717^2 + 2116^2 .

It is a cyclic number.

It is not a de Polignac number, because 7425545 - 2⁴ = 7425529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7425547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742550 + ... + 742559.

It is an arithmetic number, because the mean of its divisors is an integer number (2227665).

Almost surely, 2^7425545 is an apocalyptic number.

It is an amenable number.

7425545 is a deficient number, since it is larger than the sum of its proper divisors (1485115).

7425545 is a wasteful number, since it uses less digits than its factorization.

7425545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485114.

The product of its digits is 28000, while the sum is 32.

The square root of 7425545 is about 2724.9853210614. The cubic root of 7425545 is about 195.0934901253.

The spelling of 7425545 in words is "seven million, four hundred twenty-five thousand, five hundred forty-five".