70051 has 2 divisors, whose sum is σ = 70052. Its totient is φ = 70050.

The previous prime is 70039. The next prime is 70061. The reversal of 70051 is 15007.

70051 is nontrivially palindromic in base 15.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70051 - 2⁵ = 70019 is a prime.

It is not a weakly prime, because it can be changed into another prime (70001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35025 + 35026.

It is an arithmetic number, because the mean of its divisors is an integer number (35026).

2⁷⁰⁰⁵¹ is an apocalyptic number.

70051 is a deficient number, since it is larger than the sum of its proper divisors (1).

70051 is an equidigital number, since it uses as much as digits as its factorization.

70051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35, while the sum is 13.

The square root of 70051 is about 264.6714944984. The cubic root of 70051 is about 41.2228594041. Note that the first 3 decimals are identical.

Adding to 70051 its reverse (15007), we get a palindrome (85058).

The spelling of 70051 in words is "seventy thousand, fifty-one".