7125555 has 8 divisors (see below), whose sum is σ = 11400912. Its totient is φ = 3800288.

The previous prime is 7125553. The next prime is 7125583. The reversal of 7125555 is 5555217.

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

It is a cyclic number.

It is not a de Polignac number, because 7125555 - 2¹ = 7125553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7125553) 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, 237504 + ... + 237533.

It is an arithmetic number, because the mean of its divisors is an integer number (1425114).

Almost surely, 2^7125555 is an apocalyptic number.

7125555 is a deficient number, since it is larger than the sum of its proper divisors (4275357).

7125555 is a wasteful number, since it uses less digits than its factorization.

7125555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475045.

The product of its digits is 8750, while the sum is 30.

The square root of 7125555 is about 2669.3735220085. The cubic root of 7125555 is about 192.4300527338.

The spelling of 7125555 in words is "seven million, one hundred twenty-five thousand, five hundred fifty-five".