74500253 has 4 divisors (see below), whose sum is σ = 74721660. Its totient is φ = 74278848.

The previous prime is 74500249. The next prime is 74500313. The reversal of 74500253 is 35200547.

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 54804409 + 19695844 = 7403^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 74500253 - 2² = 74500249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74500213) 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, 110198 + ... + 110871.

It is an arithmetic number, because the mean of its divisors is an integer number (18680415).

Almost surely, 2^74500253 is an apocalyptic number.

It is an amenable number.

74500253 is a deficient number, since it is larger than the sum of its proper divisors (221407).

74500253 is a wasteful number, since it uses less digits than its factorization.

74500253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221406.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 74500253 is about 8631.3529067001. The cubic root of 74500253 is about 420.7775712630. Note that the first 3 decimals are identical.

The spelling of 74500253 in words is "seventy-four million, five hundred thousand, two hundred fifty-three".