74164725 has 36 divisors (see below), whose sum is σ = 134058756. Its totient is φ = 39191040.

The previous prime is 74164721. The next prime is 74164751. The reversal of 74164725 is 52746147.

74164725 is a `hidden beast` number, since 7 + 4 + 1 + 647 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 651249 + 73513476 = 807^2 + 8574^2 .

It is not a de Polignac number, because 74164725 - 2² = 74164721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74164725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74164721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23967 + ... + 26883.

Almost surely, 2^74164725 is an apocalyptic number.

74164725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74164725 is a deficient number, since it is larger than the sum of its proper divisors (59894031).

74164725 is a wasteful number, since it uses less digits than its factorization.

74164725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3038 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 74164725 is about 8611.8943908991. The cubic root of 74164725 is about 420.1449329742.

The spelling of 74164725 in words is "seventy-four million, one hundred sixty-four thousand, seven hundred twenty-five".