70563081 has 4 divisors (see below), whose sum is σ = 94084112. Its totient is φ = 47042052.

The previous prime is 70563071. The next prime is 70563109. The reversal of 70563081 is 18036507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70563081 - 2⁷ = 70562953 is a prime.

It is a super-2 number, since 2×70563081² = 9958296800425122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70563071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11760511 + ... + 11760516.

It is an arithmetic number, because the mean of its divisors is an integer number (23521028).

Almost surely, 2^70563081 is an apocalyptic number.

It is an amenable number.

70563081 is a deficient number, since it is larger than the sum of its proper divisors (23521031).

70563081 is a wasteful number, since it uses less digits than its factorization.

70563081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23521030.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 70563081 is about 8400.1833908552. The cubic root of 70563081 is about 413.2306360507.

Adding to 70563081 its reverse (18036507), we get a palindrome (88599588).

The spelling of 70563081 in words is "seventy million, five hundred sixty-three thousand, eighty-one".