74994725 has 48 divisors (see below), whose sum is σ = 105982800. Its totient is φ = 52254720.

The previous prime is 74994721. The next prime is 74994727. The reversal of 74994725 is 52749947.

It can be written as a sum of positive squares in 24 ways, for example, as 51394561 + 23600164 = 7169^2 + 4858^2 .

It is not a de Polignac number, because 74994725 - 2² = 74994721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74994725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74994721) 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 47 ways as a sum of consecutive naturals, for example, 687971 + ... + 688079.

It is an arithmetic number, because the mean of its divisors is an integer number (2207975).

Almost surely, 2^74994725 is an apocalyptic number.

It is an amenable number.

74994725 is a deficient number, since it is larger than the sum of its proper divisors (30988075).

74994725 is a wasteful number, since it uses less digits than its factorization.

74994725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 229 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 74994725 is about 8659.9494802222. The cubic root of 74994725 is about 421.7064455139.

The spelling of 74994725 in words is "seventy-four million, nine hundred ninety-four thousand, seven hundred twenty-five".