742347553 has 4 divisors (see below), whose sum is σ = 745533828. Its totient is φ = 739161280.

The previous prime is 742347533. The next prime is 742347569. The reversal of 742347553 is 355743247.

742347553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58629649 + 683717904 = 7657^2 + 26148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742347553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742347503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592788 + ... + 1593253.

It is an arithmetic number, because the mean of its divisors is an integer number (186383457).

Almost surely, 2^742347553 is an apocalyptic number.

It is an amenable number.

742347553 is a deficient number, since it is larger than the sum of its proper divisors (3186275).

742347553 is a wasteful number, since it uses less digits than its factorization.

742347553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186274.

The product of its digits is 352800, while the sum is 40.

The square root of 742347553 is about 27246.0557328946. The cubic root of 742347553 is about 905.4596336390.

The spelling of 742347553 in words is "seven hundred forty-two million, three hundred forty-seven thousand, five hundred fifty-three".