70312825 has 24 divisors (see below), whose sum is σ = 100127520. Its totient is φ = 48441600.

The previous prime is 70312807. The next prime is 70312831. The reversal of 70312825 is 52821307.

It is not a de Polignac number, because 70312825 - 2⁹ = 70312313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70312793 and 70312802.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1504 + ... + 11953.

It is an arithmetic number, because the mean of its divisors is an integer number (4171980).

Almost surely, 2^70312825 is an apocalyptic number.

It is an amenable number.

70312825 is a deficient number, since it is larger than the sum of its proper divisors (29814695).

70312825 is a wasteful number, since it uses less digits than its factorization.

70312825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13497 (or 13492 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 70312825 is about 8385.2742948576. The cubic root of 70312825 is about 412.7415420376.

The spelling of 70312825 in words is "seventy million, three hundred twelve thousand, eight hundred twenty-five".