74221325 has 18 divisors (see below), whose sum is σ = 93278442. Its totient is φ = 58583200.

The previous prime is 74221321. The next prime is 74221331. The reversal of 74221325 is 52312247.

It can be written as a sum of positive squares in 3 ways, for example, as 16491721 + 57729604 = 4061^2 + 7598^2 .

It is not a de Polignac number, because 74221325 - 2² = 74221321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74221294 and 74221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74221321) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 428939 + ... + 429111.

Almost surely, 2^74221325 is an apocalyptic number.

It is an amenable number.

74221325 is a deficient number, since it is larger than the sum of its proper divisors (19057117).

74221325 is a wasteful number, since it uses less digits than its factorization.

74221325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 309 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 74221325 is about 8615.1799168677. The cubic root of 74221325 is about 420.2517859125.

The spelling of 74221325 in words is "seventy-four million, two hundred twenty-one thousand, three hundred twenty-five".