74068553 has 4 divisors (see below), whose sum is σ = 79766148. Its totient is φ = 68370960.

The previous prime is 74068537. The next prime is 74068571. The reversal of 74068553 is 35586047.

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 30614089 + 43454464 = 5533^2 + 6592^2 .

It is a cyclic number.

It is not a de Polignac number, because 74068553 - 2⁴ = 74068537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74068853) 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 3 ways as a sum of consecutive naturals, for example, 2848778 + ... + 2848803.

It is an arithmetic number, because the mean of its divisors is an integer number (19941537).

Almost surely, 2^74068553 is an apocalyptic number.

It is an amenable number.

74068553 is a deficient number, since it is larger than the sum of its proper divisors (5697595).

74068553 is a wasteful number, since it uses less digits than its factorization.

74068553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697594.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 74068553 is about 8606.3089068427. The cubic root of 74068553 is about 419.9632488629.

The spelling of 74068553 in words is "seventy-four million, sixty-eight thousand, five hundred fifty-three".