70216501 has 2 divisors, whose sum is σ = 70216502. Its totient is φ = 70216500.

The previous prime is 70216483. The next prime is 70216541. The reversal of 70216501 is 10561207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67223601 + 2992900 = 8199^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 70216501 - 2¹⁷ = 70085429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70216541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35108250 + 35108251.

It is an arithmetic number, because the mean of its divisors is an integer number (35108251).

Almost surely, 2^70216501 is an apocalyptic number.

It is an amenable number.

70216501 is a deficient number, since it is larger than the sum of its proper divisors (1).

70216501 is an equidigital number, since it uses as much as digits as its factorization.

70216501 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 22.

The square root of 70216501 is about 8379.5286860300. The cubic root of 70216501 is about 412.5529795436.

Adding to 70216501 its reverse (10561207), we get a palindrome (80777708).

The spelling of 70216501 in words is "seventy million, two hundred sixteen thousand, five hundred one".