70631255 has 4 divisors (see below), whose sum is σ = 84757512. Its totient is φ = 56505000.

The previous prime is 70631213. The next prime is 70631263. The reversal of 70631255 is 55213607.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70631255 - 2¹² = 70627159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7063121 + ... + 7063130.

It is an arithmetic number, because the mean of its divisors is an integer number (21189378).

Almost surely, 2^70631255 is an apocalyptic number.

70631255 is a deficient number, since it is larger than the sum of its proper divisors (14126257).

70631255 is a wasteful number, since it uses less digits than its factorization.

70631255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126256.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 70631255 is about 8404.2402988016. The cubic root of 70631255 is about 413.3636731256.

The spelling of 70631255 in words is "seventy million, six hundred thirty-one thousand, two hundred fifty-five".