667282425 has 12 divisors (see below), whose sum is σ = 1103240400. Its totient is φ = 355883920.

The previous prime is 667282403. The next prime is 667282433. The reversal of 667282425 is 524282766.

It is not a de Polignac number, because 667282425 - 2¹⁸ = 667020281 is a prime.

It is a super-3 number, since 3×667282425³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

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, 4448475 + ... + 4448624.

It is an arithmetic number, because the mean of its divisors is an integer number (91936700).

Almost surely, 2^667282425 is an apocalyptic number.

It is an amenable number.

667282425 is a deficient number, since it is larger than the sum of its proper divisors (435957975).

667282425 is a wasteful number, since it uses less digits than its factorization.

667282425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897112 (or 8897107 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 667282425 is about 25831.8103314499. The cubic root of 667282425 is about 873.8493391979.

The spelling of 667282425 in words is "six hundred sixty-seven million, two hundred eighty-two thousand, four hundred twenty-five".