67425556 has 18 divisors (see below), whose sum is σ = 129697610. Its totient is φ = 30647760.

The previous prime is 67425529. The next prime is 67425559. The reversal of 67425556 is 65552476.

It can be written as a sum of positive squares in only one way, i.e., 64480900 + 2944656 = 8030^2 + 1716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67425559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69171 + ... + 70138.

Almost surely, 2^67425556 is an apocalyptic number.

It is an amenable number.

67425556 is a deficient number, since it is larger than the sum of its proper divisors (62272054).

67425556 is a wasteful number, since it uses less digits than its factorization.

67425556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139335 (or 139322 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 67425556 is about 8211.3065951772. The cubic root of 67425556 is about 407.0129043875.

Subtracting from 67425556 its reverse (65552476), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 67425556 in words is "sixty-seven million, four hundred twenty-five thousand, five hundred fifty-six".