70512625 has 16 divisors (see below), whose sum is σ = 88584912. Its totient is φ = 56035200.

The previous prime is 70512593. The next prime is 70512683. The reversal of 70512625 is 52621507.

It can be written as a sum of positive squares in 8 ways, for example, as 36675136 + 33837489 = 6056^2 + 5817^2 .

It is not a de Polignac number, because 70512625 - 2⁵ = 70512593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70512593 and 70512602.

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 15 ways as a sum of consecutive naturals, for example, 17829 + ... + 21421.

It is an arithmetic number, because the mean of its divisors is an integer number (5536557).

Almost surely, 2^70512625 is an apocalyptic number.

It is an amenable number.

70512625 is a deficient number, since it is larger than the sum of its proper divisors (18072287).

70512625 is a wasteful number, since it uses less digits than its factorization.

70512625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765 (or 3755 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 70512625 is about 8397.1795860277. The cubic root of 70512625 is about 413.1321192994.

The spelling of 70512625 in words is "seventy million, five hundred twelve thousand, six hundred twenty-five".