70755571 has 2 divisors, whose sum is σ = 70755572. Its totient is φ = 70755570.

The previous prime is 70755533. The next prime is 70755577. The reversal of 70755571 is 17555707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70755571 - 2¹¹ = 70753523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70755571.

It is not a weakly prime, because it can be changed into another prime (70755577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35377785 + 35377786.

It is an arithmetic number, because the mean of its divisors is an integer number (35377786).

Almost surely, 2^70755571 is an apocalyptic number.

70755571 is a deficient number, since it is larger than the sum of its proper divisors (1).

70755571 is an equidigital number, since it uses as much as digits as its factorization.

70755571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42875, while the sum is 37.

The square root of 70755571 is about 8411.6330756875. The cubic root of 70755571 is about 413.6060474076.

The spelling of 70755571 in words is "seventy million, seven hundred fifty-five thousand, five hundred seventy-one".