65625970 has 8 divisors (see below), whose sum is σ = 118126764. Its totient is φ = 26250384.

The previous prime is 65625961. The next prime is 65625991. The reversal of 65625970 is 7952656.

It can be written as a sum of positive squares in 2 ways, for example, as 59861169 + 5764801 = 7737^2 + 2401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281289 + ... + 3281308.

Almost surely, 2^65625970 is an apocalyptic number.

65625970 is a deficient number, since it is larger than the sum of its proper divisors (52500794).

65625970 is a wasteful number, since it uses less digits than its factorization.

65625970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562604.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 65625970 is about 8100.9857424884. The cubic root of 65625970 is about 403.3591488307.

The spelling of 65625970 in words is "sixty-five million, six hundred twenty-five thousand, nine hundred seventy".