70895551 has 2 divisors, whose sum is σ = 70895552. Its totient is φ = 70895550.

The previous prime is 70895537. The next prime is 70895563. The reversal of 70895551 is 15559807.

It is a strong prime.

It is an emirp because it is prime and its reverse (15559807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70895551 - 2¹⁷ = 70764479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70895351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35447775 + 35447776.

It is an arithmetic number, because the mean of its divisors is an integer number (35447776).

Almost surely, 2^70895551 is an apocalyptic number.

70895551 is a deficient number, since it is larger than the sum of its proper divisors (1).

70895551 is an equidigital number, since it uses as much as digits as its factorization.

70895551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 70895551 is about 8419.9495841721. The cubic root of 70895551 is about 413.8786216399.

The spelling of 70895551 in words is "seventy million, eight hundred ninety-five thousand, five hundred fifty-one".