75805025 has 18 divisors (see below), whose sum is σ = 95471010. Its totient is φ = 59708160.

The previous prime is 75805019. The next prime is 75805027. The reversal of 75805025 is 52050857.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 27793984 + 48011041 = 5272^2 + 6929^2 .

It is not a de Polignac number, because 75805025 - 2⁶ = 75804961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75804982 and 75805000.

It is not an unprimeable number, because it can be changed into a prime (75805027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 132941 + ... + 133509.

It is an arithmetic number, because the mean of its divisors is an integer number (5303945).

Almost surely, 2^75805025 is an apocalyptic number.

It is an amenable number.

75805025 is a deficient number, since it is larger than the sum of its proper divisors (19665985).

75805025 is an equidigital number, since it uses as much as digits as its factorization.

75805025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 75805025 is about 8706.6081225699. The cubic root of 75805025 is about 423.2198202827.

The spelling of 75805025 in words is "seventy-five million, eight hundred five thousand, twenty-five".