75725750 has 16 divisors (see below), whose sum is σ = 141759072. Its totient is φ = 30290200.

The previous prime is 75725743. The next prime is 75725759. The reversal of 75725750 is 5752757.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75725759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151202 + ... + 151701.

It is an arithmetic number, because the mean of its divisors is an integer number (8859942).

Almost surely, 2^75725750 is an apocalyptic number.

75725750 is a deficient number, since it is larger than the sum of its proper divisors (66033322).

75725750 is a wasteful number, since it uses less digits than its factorization.

75725750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302920 (or 302910 counting only the distinct ones).

The product of its (nonzero) digits is 85750, while the sum is 38.

The square root of 75725750 is about 8702.0543551509. The cubic root of 75725750 is about 423.0722379223.

The spelling of 75725750 in words is "seventy-five million, seven hundred twenty-five thousand, seven hundred fifty".