755742566 has 4 divisors (see below), whose sum is σ = 1133613852. Its totient is φ = 377871282.

The previous prime is 755742557. The next prime is 755742571. The reversal of 755742566 is 665247557.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×755742566² = 1142293652128528712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 755742566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188935640 + ... + 188935643.

It is an arithmetic number, because the mean of its divisors is an integer number (283403463).

Almost surely, 2^755742566 is an apocalyptic number.

755742566 is a deficient number, since it is larger than the sum of its proper divisors (377871286).

755742566 is a wasteful number, since it uses less digits than its factorization.

755742566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377871285.

The product of its digits is 1764000, while the sum is 47.

The square root of 755742566 is about 27490.7723791093. The cubic root of 755742566 is about 910.8732775425.

The spelling of 755742566 in words is "seven hundred fifty-five million, seven hundred forty-two thousand, five hundred sixty-six".