74425 has 12 divisors (see below), whose sum is σ = 99820. Its totient is φ = 54720.

The previous prime is 74419. The next prime is 74441. The reversal of 74425 is 52447.

It can be written as a sum of positive squares in 6 ways, for example, as 441 + 73984 = 21^2 + 272^2 .

It is not a de Polignac number, because 74425 - 2⁷ = 74297 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

74425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 74396 and 74405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211 + ... + 439.

2⁷⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

74425 is a deficient number, since it is larger than the sum of its proper divisors (25395).

74425 is a wasteful number, since it uses less digits than its factorization.

74425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its digits is 1120, while the sum is 22.

The square root of 74425 is about 272.8094573141. The cubic root of 74425 is about 42.0635847171.

Adding to 74425 its sum of digits (22), we get a palindrome (74447).

It can be divided in two parts, 7442 and 5, that added together give a palindrome (7447).

The spelling of 74425 in words is "seventy-four thousand, four hundred twenty-five".