75740725 has 24 divisors (see below), whose sum is σ = 98743680. Its totient is φ = 57520320.

The previous prime is 75740713. The next prime is 75740747. The reversal of 75740725 is 52704757.

It is not a de Polignac number, because 75740725 - 2⁷ = 75740597 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89856 + ... + 90694.

It is an arithmetic number, because the mean of its divisors is an integer number (4114320).

Almost surely, 2^75740725 is an apocalyptic number.

It is an amenable number.

75740725 is a deficient number, since it is larger than the sum of its proper divisors (23002955).

75740725 is a wasteful number, since it uses less digits than its factorization.

75740725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 75740725 is about 8702.9147416254. The cubic root of 75740725 is about 423.1001240296.

The spelling of 75740725 in words is "seventy-five million, seven hundred forty thousand, seven hundred twenty-five".