7505506 has 8 divisors (see below), whose sum is σ = 11289564. Its totient is φ = 3742320.

The previous prime is 7505479. The next prime is 7505539. The reversal of 7505506 is 6055057.

It can be written as a sum of positive squares in 2 ways, for example, as 7480225 + 25281 = 2735^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×7505506³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4285 + ... + 5776.

Almost surely, 2^7505506 is an apocalyptic number.

7505506 is a deficient number, since it is larger than the sum of its proper divisors (3784058).

7505506 is a wasteful number, since it uses less digits than its factorization.

7505506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10436.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 7505506 is about 2739.6178565632. The cubic root of 7505506 is about 195.7912709219.

The spelling of 7505506 in words is "seven million, five hundred five thousand, five hundred six".