67426425 has 72 divisors (see below), whose sum is σ = 136762080. Its totient is φ = 32659200.

The previous prime is 67426399. The next prime is 67426433. The reversal of 67426425 is 52462476.

67426425 is a `hidden beast` number, since 6 + 7 + 4 + 2 + 642 + 5 = 666.

It is not a de Polignac number, because 67426425 - 2⁶ = 67426361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67426425.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 66321 + ... + 67329.

Almost surely, 2^67426425 is an apocalyptic number.

It is an amenable number.

67426425 is an abundant number, since it is smaller than the sum of its proper divisors (69335655).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67426425 is a wasteful number, since it uses less digits than its factorization.

67426425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1028 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 67426425 is about 8211.3595098498. The cubic root of 67426425 is about 407.0146529466.

The spelling of 67426425 in words is "sixty-seven million, four hundred twenty-six thousand, four hundred twenty-five".