7625081 has 4 divisors (see below), whose sum is σ = 7637412. Its totient is φ = 7612752.

The previous prime is 7625077. The next prime is 7625089. The reversal of 7625081 is 1805267.

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 4239481 + 3385600 = 2059^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 7625081 - 2² = 7625077 is a prime.

It is a super-2 number, since 2×7625081² = 116283720513122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7625089) 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 3 ways as a sum of consecutive naturals, for example, 5186 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (1909353).

Almost surely, 2^7625081 is an apocalyptic number.

It is an amenable number.

7625081 is a deficient number, since it is larger than the sum of its proper divisors (12331).

7625081 is a wasteful number, since it uses less digits than its factorization.

7625081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12330.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 7625081 is about 2761.3549210487. The cubic root of 7625081 is about 196.8255561062.

The spelling of 7625081 in words is "seven million, six hundred twenty-five thousand, eighty-one".