75444725 has 24 divisors (see below), whose sum is σ = 104279040. Its totient is φ = 53809920.

The previous prime is 75444703. The next prime is 75444751. The reversal of 75444725 is 52744457.

It is not a de Polignac number, because 75444725 - 2¹⁰ = 75443701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3404 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (4344960).

Almost surely, 2^75444725 is an apocalyptic number.

It is an amenable number.

75444725 is a deficient number, since it is larger than the sum of its proper divisors (28834315).

75444725 is a wasteful number, since it uses less digits than its factorization.

75444725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9389 (or 9384 counting only the distinct ones).

The product of its digits is 156800, while the sum is 38.

The square root of 75444725 is about 8685.8922972830. The cubic root of 75444725 is about 422.5482362676.

The spelling of 75444725 in words is "seventy-five million, four hundred forty-four thousand, seven hundred twenty-five".