742566556 has 6 divisors (see below), whose sum is σ = 1299491480. Its totient is φ = 371283276.

The previous prime is 742566551. The next prime is 742566571. The reversal of 742566556 is 655665247.

It is a super-2 number, since 2×742566556² = 1102810180179402272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742566551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92820816 + ... + 92820823.

Almost surely, 2^742566556 is an apocalyptic number.

It is an amenable number.

742566556 is a deficient number, since it is larger than the sum of its proper divisors (556924924).

742566556 is a wasteful number, since it uses less digits than its factorization.

742566556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185641643 (or 185641641 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 46.

The square root of 742566556 is about 27250.0744219167. The cubic root of 742566556 is about 905.5486660059.

The spelling of 742566556 in words is "seven hundred forty-two million, five hundred sixty-six thousand, five hundred fifty-six".