70025321 has 2 divisors, whose sum is σ = 70025322. Its totient is φ = 70025320.

The previous prime is 70025303. The next prime is 70025339. The reversal of 70025321 is 12352007.

It is a balanced prime because it is at equal distance from previous prime (70025303) and next prime (70025339).

It can be written as a sum of positive squares in only one way, i.e., 53509225 + 16516096 = 7315^2 + 4064^2 .

It is an emirp because it is prime and its reverse (12352007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70025321 - 2²⁶ = 2916457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70025293 and 70025302.

It is not a weakly prime, because it can be changed into another prime (76025321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35012660 + 35012661.

It is an arithmetic number, because the mean of its divisors is an integer number (35012661).

Almost surely, 2^70025321 is an apocalyptic number.

It is an amenable number.

70025321 is a deficient number, since it is larger than the sum of its proper divisors (1).

70025321 is an equidigital number, since it uses as much as digits as its factorization.

70025321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 70025321 is about 8368.1133477027. The cubic root of 70025321 is about 412.1782168784.

Adding to 70025321 its reverse (12352007), we get a palindrome (82377328).

The spelling of 70025321 in words is "seventy million, twenty-five thousand, three hundred twenty-one".