75725765 has 8 divisors (see below), whose sum is σ = 91102200. Its totient is φ = 60426432.

The previous prime is 75725761. The next prime is 75725779. The reversal of 75725765 is 56752757.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27520516 + 48205249 = 5246^2 + 6943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75725765 - 2² = 75725761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75725761) 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, 17090 + ... + 21059.

It is an arithmetic number, because the mean of its divisors is an integer number (11387775).

Almost surely, 2^75725765 is an apocalyptic number.

It is an amenable number.

75725765 is a deficient number, since it is larger than the sum of its proper divisors (15376435).

75725765 is a wasteful number, since it uses less digits than its factorization.

75725765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38551.

The product of its digits is 514500, while the sum is 44.

The square root of 75725765 is about 8702.0552170163. The cubic root of 75725765 is about 423.0722658568.

The spelling of 75725765 in words is "seventy-five million, seven hundred twenty-five thousand, seven hundred sixty-five".