70210253 has 2 divisors, whose sum is σ = 70210254. Its totient is φ = 70210252.

The previous prime is 70210241. The next prime is 70210277. The reversal of 70210253 is 35201207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40475044 + 29735209 = 6362^2 + 5453^2 .

It is an emirp because it is prime and its reverse (35201207) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70210253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70210853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35105126 + 35105127.

It is an arithmetic number, because the mean of its divisors is an integer number (35105127).

Almost surely, 2^70210253 is an apocalyptic number.

It is an amenable number.

70210253 is a deficient number, since it is larger than the sum of its proper divisors (1).

70210253 is an equidigital number, since it uses as much as digits as its factorization.

70210253 is an evil number, because the sum of its binary digits is even.

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

The square root of 70210253 is about 8379.1558644054. The cubic root of 70210253 is about 412.5407425934.

The spelling of 70210253 in words is "seventy million, two hundred ten thousand, two hundred fifty-three".