70055391 has 8 divisors (see below), whose sum is σ = 106751104. Its totient is φ = 40031640.

The previous prime is 70055369. The next prime is 70055407. The reversal of 70055391 is 19355007.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70055391 - 2⁹ = 70054879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70055341) 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 in 7 ways as a sum of consecutive naturals, for example, 1667965 + ... + 1668006.

It is an arithmetic number, because the mean of its divisors is an integer number (13343888).

Almost surely, 2^70055391 is an apocalyptic number.

70055391 is a deficient number, since it is larger than the sum of its proper divisors (36695713).

70055391 is a wasteful number, since it uses less digits than its factorization.

70055391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335981.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 70055391 is about 8369.9098561454. The cubic root of 70055391 is about 412.2372070891.

The spelling of 70055391 in words is "seventy million, fifty-five thousand, three hundred ninety-one".