75115625 has 36 divisors (see below), whose sum is σ = 103516812. Its totient is φ = 54180000.

The previous prime is 75115561. The next prime is 75115627. The reversal of 75115625 is 52651157.

It can be written as a sum of positive squares in 6 ways, for example, as 71031184 + 4084441 = 8428^2 + 2021^2 .

It is not a de Polignac number, because 75115625 - 2⁶ = 75115561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75115591 and 75115600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75115627) 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 35 ways as a sum of consecutive naturals, for example, 1746854 + ... + 1746896.

It is an arithmetic number, because the mean of its divisors is an integer number (2875467).

Almost surely, 2^75115625 is an apocalyptic number.

It is an amenable number.

75115625 is a deficient number, since it is larger than the sum of its proper divisors (28401187).

75115625 is an frugal number, since it uses more digits than its factorization.

75115625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 61 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 75115625 is about 8666.9270794209. The cubic root of 75115625 is about 421.9329367162.

The spelling of 75115625 in words is "seventy-five million, one hundred fifteen thousand, six hundred twenty-five".