70240057 has 2 divisors, whose sum is σ = 70240058. Its totient is φ = 70240056.

The previous prime is 70240021. The next prime is 70240067. The reversal of 70240057 is 75004207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 10471696 = 7731^2 + 3236^2 .

It is an emirp because it is prime and its reverse (75004207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70240057 - 2¹¹ = 70238009 is a prime.

It is not a weakly prime, because it can be changed into another prime (70240007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35120028 + 35120029.

It is an arithmetic number, because the mean of its divisors is an integer number (35120029).

Almost surely, 2^70240057 is an apocalyptic number.

It is an amenable number.

70240057 is a deficient number, since it is larger than the sum of its proper divisors (1).

70240057 is an equidigital number, since it uses as much as digits as its factorization.

70240057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 70240057 is about 8380.9341364791. The cubic root of 70240057 is about 412.5991083562.

The spelling of 70240057 in words is "seventy million, two hundred forty thousand, fifty-seven".