75556564 has 24 divisors (see below), whose sum is σ = 138878208. Its totient is φ = 35898720.

The previous prime is 75556561. The next prime is 75556573. The reversal of 75556564 is 46565557.

It is a self number, because there is not a number n which added to its sum of digits gives 75556564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75556561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11829 + ... + 17059.

It is an arithmetic number, because the mean of its divisors is an integer number (5786592).

Almost surely, 2^75556564 is an apocalyptic number.

It is an amenable number.

75556564 is a deficient number, since it is larger than the sum of its proper divisors (63321644).

75556564 is a wasteful number, since it uses less digits than its factorization.

75556564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415 (or 5413 counting only the distinct ones).

The product of its digits is 630000, while the sum is 43.

The square root of 75556564 is about 8692.3278815286. The cubic root of 75556564 is about 422.7569278628.

The spelling of 75556564 in words is "seventy-five million, five hundred fifty-six thousand, five hundred sixty-four".