7522985 has 8 divisors (see below), whose sum is σ = 9117576. Its totient is φ = 5958400.

The previous prime is 7522981. The next prime is 7522997. The reversal of 7522985 is 5892257.

It can be written as a sum of positive squares in 4 ways, for example, as 4439449 + 3083536 = 2107^2 + 1756^2 .

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

It is not a de Polignac number, because 7522985 - 2² = 7522981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7522981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6944 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (1139697).

Almost surely, 2^7522985 is an apocalyptic number.

It is an amenable number.

7522985 is a deficient number, since it is larger than the sum of its proper divisors (1594591).

7522985 is a wasteful number, since it uses less digits than its factorization.

7522985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15003.

The product of its digits is 50400, while the sum is 38.

The square root of 7522985 is about 2742.8060449109. The cubic root of 7522985 is about 195.9431408719.

The spelling of 7522985 in words is "seven million, five hundred twenty-two thousand, nine hundred eighty-five".