70715255531 has 2 divisors, whose sum is σ = 70715255532. Its totient is φ = 70715255530.

The previous prime is 70715255519. The next prime is 70715255599. The reversal of 70715255531 is 13555251707.

It is a weak prime.

It is an emirp because it is prime and its reverse (13555251707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70715255531 - 2³⁰ = 69641513707 is a prime.

It is a super-2 number, since 2×70715255531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70715258531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35357627765 + 35357627766.

It is an arithmetic number, because the mean of its divisors is an integer number (35357627766).

Almost surely, 2^70715255531 is an apocalyptic number.

70715255531 is a deficient number, since it is larger than the sum of its proper divisors (1).

70715255531 is an equidigital number, since it uses as much as digits as its factorization.

70715255531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183750, while the sum is 41.

The spelling of 70715255531 in words is "seventy billion, seven hundred fifteen million, two hundred fifty-five thousand, five hundred thirty-one".