67206425 has 36 divisors (see below), whose sum is σ = 98704620. Its totient is φ = 45091200.

The previous prime is 67206413. The next prime is 67206449. The reversal of 67206425 is 52460276.

It can be written as a sum of positive squares in 6 ways, for example, as 15768841 + 51437584 = 3971^2 + 7172^2 .

It is not a de Polignac number, because 67206425 - 2⁴ = 67206409 is a prime.

It is a super-2 number, since 2×67206425² = 9033407122561250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67206391 and 67206400.

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 35 ways as a sum of consecutive naturals, for example, 38471 + ... + 40179.

It is an arithmetic number, because the mean of its divisors is an integer number (2741795).

Almost surely, 2^67206425 is an apocalyptic number.

67206425 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67206425 is a deficient number, since it is larger than the sum of its proper divisors (31498195).

67206425 is a wasteful number, since it uses less digits than its factorization.

67206425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 67206425 is about 8197.9524882741. The cubic root of 67206425 is about 406.5714993499.

The spelling of 67206425 in words is "sixty-seven million, two hundred six thousand, four hundred twenty-five".