70545256 has 16 divisors (see below), whose sum is σ = 135499140. Its totient is φ = 34412160.

The previous prime is 70545253. The next prime is 70545263. The reversal of 70545256 is 65254507.

It can be written as a sum of positive squares in 2 ways, for example, as 61936900 + 8608356 = 7870^2 + 2934^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70545253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107211 + ... + 107866.

Almost surely, 2^70545256 is an apocalyptic number.

It is an amenable number.

70545256 is a deficient number, since it is larger than the sum of its proper divisors (64953884).

70545256 is a wasteful number, since it uses less digits than its factorization.

70545256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215124 (or 215120 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 70545256 is about 8399.1223351014. The cubic root of 70545256 is about 413.1958376061.

The spelling of 70545256 in words is "seventy million, five hundred forty-five thousand, two hundred fifty-six".