70725223 has 2 divisors, whose sum is σ = 70725224. Its totient is φ = 70725222.

The previous prime is 70725209. The next prime is 70725233. The reversal of 70725223 is 32252707.

It is a strong prime.

It is an emirp because it is prime and its reverse (32252707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70725223 - 2⁵ = 70725191 is a prime.

It is equal to p_4158217 and since 70725223 and 4158217 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 70725191 and 70725200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70725233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35362611 + 35362612.

It is an arithmetic number, because the mean of its divisors is an integer number (35362612).

Almost surely, 2^70725223 is an apocalyptic number.

70725223 is a deficient number, since it is larger than the sum of its proper divisors (1).

70725223 is an equidigital number, since it uses as much as digits as its factorization.

70725223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 70725223 is about 8409.8289518872. The cubic root of 70725223 is about 413.5469052502.

The spelling of 70725223 in words is "seventy million, seven hundred twenty-five thousand, two hundred twenty-three".