75697056 has 72 divisors (see below), whose sum is σ = 227940804. Its totient is φ = 23746560.

The previous prime is 75697033. The next prime is 75697067. The reversal of 75697056 is 65079657.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75690000 + 7056 = 8700^2 + 84^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2835 + ... + 12626.

Almost surely, 2^75697056 is an apocalyptic number.

It is an amenable number.

75697056 is an abundant number, since it is smaller than the sum of its proper divisors (152243748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75697056 is a wasteful number, since it uses less digits than its factorization.

75697056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15494 (or 15483 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The square root of 75697056 is about 8700.4055077910. The cubic root of 75697056 is about 423.0187943295.

It can be divided in two parts, 7569 and 7056, that multiplied together give a square (53406864 = 7308²).

The spelling of 75697056 in words is "seventy-five million, six hundred ninety-seven thousand, fifty-six".