74506505 has 16 divisors (see below), whose sum is σ = 94414080. Its totient is φ = 56287872.

The previous prime is 74506489. The next prime is 74506507. The reversal of 74506505 is 50560547.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74506505 - 2⁴ = 74506489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74506507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33797 + ... + 35933.

It is an arithmetic number, because the mean of its divisors is an integer number (5900880).

Almost surely, 2^74506505 is an apocalyptic number.

It is an amenable number.

74506505 is a deficient number, since it is larger than the sum of its proper divisors (19907575).

74506505 is a wasteful number, since it uses less digits than its factorization.

74506505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 74506505 is about 8631.7150671231. The cubic root of 74506505 is about 420.7893413697.

The spelling of 74506505 in words is "seventy-four million, five hundred six thousand, five hundred five".