70551671 has 2 divisors, whose sum is σ = 70551672. Its totient is φ = 70551670.

The previous prime is 70551641. The next prime is 70551707. The reversal of 70551671 is 17615507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70551671 - 2²⁶ = 3442807 is a prime.

It is a Sophie Germain 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 (70551641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35275835 + 35275836.

It is an arithmetic number, because the mean of its divisors is an integer number (35275836).

Almost surely, 2^70551671 is an apocalyptic number.

70551671 is a deficient number, since it is larger than the sum of its proper divisors (1).

70551671 is an equidigital number, since it uses as much as digits as its factorization.

70551671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 70551671 is about 8399.5042115592. The cubic root of 70551671 is about 413.2083618168.

The spelling of 70551671 in words is "seventy million, five hundred fifty-one thousand, six hundred seventy-one".