7521995 has 16 divisors (see below), whose sum is σ = 10036992. Its totient is φ = 5374080.

The previous prime is 7521979. The next prime is 7522003. The reversal of 7521995 is 5991257.

It is not a de Polignac number, because 7521995 - 2⁴ = 7521979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 149 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (627312).

Almost surely, 2^7521995 is an apocalyptic number.

7521995 is a deficient number, since it is larger than the sum of its proper divisors (2514997).

7521995 is a wasteful number, since it uses less digits than its factorization.

7521995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782.

The product of its digits is 28350, while the sum is 38.

The square root of 7521995 is about 2742.6255668611. The cubic root of 7521995 is about 195.9345453379.

The spelling of 7521995 in words is "seven million, five hundred twenty-one thousand, nine hundred ninety-five".