70189025 has 6 divisors (see below), whose sum is σ = 87034422. Its totient is φ = 56151200.

The previous prime is 70189003. The next prime is 70189043. The reversal of 70189025 is 52098107.

It can be written as a sum of positive squares in 3 ways, for example, as 23512801 + 46676224 = 4849^2 + 6832^2 .

It is not a de Polignac number, because 70189025 - 2¹⁸ = 69926881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70188982 and 70189000.

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 5 ways as a sum of consecutive naturals, for example, 1403756 + ... + 1403805.

It is an arithmetic number, because the mean of its divisors is an integer number (14505737).

Almost surely, 2^70189025 is an apocalyptic number.

It is an amenable number.

70189025 is a deficient number, since it is larger than the sum of its proper divisors (16845397).

70189025 is a wasteful number, since it uses less digits than its factorization.

70189025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807571 (or 2807566 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 70189025 is about 8377.8890539324. The cubic root of 70189025 is about 412.4991613084.

The spelling of 70189025 in words is "seventy million, one hundred eighty-nine thousand, twenty-five".