75205725 has 24 divisors (see below), whose sum is σ = 142104000. Its totient is φ = 34379520.

The previous prime is 75205723. The next prime is 75205727. The reversal of 75205725 is 52750257.

It is an interprime number because it is at equal distance from previous prime (75205723) and next prime (75205727).

It is not a de Polignac number, because 75205725 - 2¹ = 75205723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75205723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71100 + ... + 72149.

It is an arithmetic number, because the mean of its divisors is an integer number (5921000).

Almost surely, 2^75205725 is an apocalyptic number.

75205725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75205725 is a deficient number, since it is larger than the sum of its proper divisors (66898275).

75205725 is a wasteful number, since it uses less digits than its factorization.

75205725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143269 (or 143264 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 75205725 is about 8672.1234423871. The cubic root of 75205725 is about 422.1015699302.

The spelling of 75205725 in words is "seventy-five million, two hundred five thousand, seven hundred twenty-five".