74425569 has 4 divisors (see below), whose sum is σ = 99234096. Its totient is φ = 49617044.

The previous prime is 74425553. The next prime is 74425579. The reversal of 74425569 is 96552447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74425569 - 2⁴ = 74425553 is a prime.

It is a super-2 number, since 2×74425569² = 11078330641947522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74425569.

It is not an unprimeable number, because it can be changed into a prime (74425579) 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, 12404259 + ... + 12404264.

It is an arithmetic number, because the mean of its divisors is an integer number (24808524).

Almost surely, 2^74425569 is an apocalyptic number.

It is an amenable number.

74425569 is a deficient number, since it is larger than the sum of its proper divisors (24808527).

74425569 is a wasteful number, since it uses less digits than its factorization.

74425569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24808526.

The product of its digits is 302400, while the sum is 42.

The square root of 74425569 is about 8627.0255012953. The cubic root of 74425569 is about 420.6369191279.

The spelling of 74425569 in words is "seventy-four million, four hundred twenty-five thousand, five hundred sixty-nine".