75955657 has 8 divisors (see below), whose sum is σ = 77925960. Its totient is φ = 73991040.

The previous prime is 75955651. The next prime is 75955667. The reversal of 75955657 is 75655957.

It can be written as a sum of positive squares in 4 ways, for example, as 335241 + 75620416 = 579^2 + 8696^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75955657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75955657.

It is not an unprimeable number, because it can be changed into a prime (75955651) 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, 42963 + ... + 44695.

It is an arithmetic number, because the mean of its divisors is an integer number (9740745).

Almost surely, 2^75955657 is an apocalyptic number.

It is an amenable number.

75955657 is a deficient number, since it is larger than the sum of its proper divisors (1970303).

75955657 is a wasteful number, since it uses less digits than its factorization.

75955657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843.

The product of its digits is 1653750, while the sum is 49.

The square root of 75955657 is about 8715.2542705305. The cubic root of 75955657 is about 423.4999612030.

The spelling of 75955657 in words is "seventy-five million, nine hundred fifty-five thousand, six hundred fifty-seven".