67157425 has 12 divisors (see below), whose sum is σ = 84102876. Its totient is φ = 53192000.

The previous prime is 67157411. The next prime is 67157437. The reversal of 67157425 is 52475176.

It can be written as a sum of positive squares in 6 ways, for example, as 9412624 + 57744801 = 3068^2 + 7599^2 .

It is not a de Polignac number, because 67157425 - 2⁵ = 67157393 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 10774 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (7008573).

Almost surely, 2^67157425 is an apocalyptic number.

It is an amenable number.

67157425 is a deficient number, since it is larger than the sum of its proper divisors (16945451).

67157425 is a wasteful number, since it uses less digits than its factorization.

67157425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708 (or 26703 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 67157425 is about 8194.9633922306. The cubic root of 67157425 is about 406.4726653117.

The spelling of 67157425 in words is "sixty-seven million, one hundred fifty-seven thousand, four hundred twenty-five".