74530525 has 6 divisors (see below), whose sum is σ = 92417882. Its totient is φ = 59624400.

The previous prime is 74530523. The next prime is 74530553. The reversal of 74530525 is 52503547.

It can be written as a sum of positive squares in 3 ways, for example, as 17422276 + 57108249 = 4174^2 + 7557^2 .

It is not a de Polignac number, because 74530525 - 2¹ = 74530523 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 (74530523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1490586 + ... + 1490635.

Almost surely, 2^74530525 is an apocalyptic number.

It is an amenable number.

74530525 is a deficient number, since it is larger than the sum of its proper divisors (17887357).

74530525 is a wasteful number, since it uses less digits than its factorization.

74530525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981231 (or 2981226 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 74530525 is about 8633.1063354971. The cubic root of 74530525 is about 420.8345556500.

The spelling of 74530525 in words is "seventy-four million, five hundred thirty thousand, five hundred twenty-five".