69427255 has 4 divisors (see below), whose sum is σ = 83312712. Its totient is φ = 55541800.

The previous prime is 69427231. The next prime is 69427283. The reversal of 69427255 is 55272496.

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

It is not a de Polignac number, because 69427255 - 2¹¹ = 69425207 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6942721 + ... + 6942730.

It is an arithmetic number, because the mean of its divisors is an integer number (20828178).

Almost surely, 2^69427255 is an apocalyptic number.

69427255 is a deficient number, since it is larger than the sum of its proper divisors (13885457).

69427255 is a wasteful number, since it uses less digits than its factorization.

69427255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13885456.

The product of its digits is 151200, while the sum is 40.

The square root of 69427255 is about 8332.3019028357. The cubic root of 69427255 is about 411.0014286708.

The spelling of 69427255 in words is "sixty-nine million, four hundred twenty-seven thousand, two hundred fifty-five".