70109425 has 6 divisors (see below), whose sum is σ = 86935718. Its totient is φ = 56087520.

The previous prime is 70109401. The next prime is 70109437. The reversal of 70109425 is 52490107.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1418481 + 68690944 = 1191^2 + 8288^2 .

It is not a de Polignac number, because 70109425 - 2¹¹ = 70107377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70109393 and 70109402.

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 5 ways as a sum of consecutive naturals, for example, 1402164 + ... + 1402213.

Almost surely, 2^70109425 is an apocalyptic number.

It is an amenable number.

70109425 is a deficient number, since it is larger than the sum of its proper divisors (16826293).

70109425 is a wasteful number, since it uses less digits than its factorization.

70109425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804387 (or 2804382 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70109425 is about 8373.1371062464. The cubic root of 70109425 is about 412.3431665805.

The spelling of 70109425 in words is "seventy million, one hundred nine thousand, four hundred twenty-five".