75444125 has 8 divisors (see below), whose sum is σ = 94154424. Its totient is φ = 60355200.

The previous prime is 75444091. The next prime is 75444137. The reversal of 75444125 is 52144457.

It can be written as a sum of positive squares in 4 ways, for example, as 344569 + 75099556 = 587^2 + 8666^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75444125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75444091 and 75444100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301652 + ... + 301901.

It is an arithmetic number, because the mean of its divisors is an integer number (11769303).

Almost surely, 2^75444125 is an apocalyptic number.

It is an amenable number.

75444125 is a deficient number, since it is larger than the sum of its proper divisors (18710299).

75444125 is an equidigital number, since it uses as much as digits as its factorization.

75444125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603568 (or 603558 counting only the distinct ones).

The product of its digits is 22400, while the sum is 32.

The square root of 75444125 is about 8685.8577584485. The cubic root of 75444125 is about 422.5471161115.

The spelling of 75444125 in words is "seventy-five million, four hundred forty-four thousand, one hundred twenty-five".