74451825 has 72 divisors (see below), whose sum is σ = 159171360. Its totient is φ = 34020000.

The previous prime is 74451757. The next prime is 74451827. The reversal of 74451825 is 52815447.

It is not a de Polignac number, because 74451825 - 2¹⁴ = 74435441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74451825.

It is not an unprimeable number, because it can be changed into a prime (74451827) 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 71 ways as a sum of consecutive naturals, for example, 31950 + ... + 34200.

Almost surely, 2^74451825 is an apocalyptic number.

74451825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74451825 is an abundant number, since it is smaller than the sum of its proper divisors (84719535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74451825 is a wasteful number, since it uses less digits than its factorization.

74451825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2266 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 74451825 is about 8628.5470967017. The cubic root of 74451825 is about 420.6863776882.

The spelling of 74451825 in words is "seventy-four million, four hundred fifty-one thousand, eight hundred twenty-five".