65252278 has 32 divisors (see below), whose sum is σ = 121391424. Its totient is φ = 25615872.

The previous prime is 65252267. The next prime is 65252287. The reversal of 65252278 is 87225256.

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 15 ways as a sum of consecutive naturals, for example, 23626 + ... + 26242.

It is an arithmetic number, because the mean of its divisors is an integer number (3793482).

Almost surely, 2^65252278 is an apocalyptic number.

65252278 is a deficient number, since it is larger than the sum of its proper divisors (56139146).

65252278 is a wasteful number, since it uses less digits than its factorization.

65252278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its digits is 67200, while the sum is 37.

The square root of 65252278 is about 8077.8882141312. Note that the first 3 decimals coincide. The cubic root of 65252278 is about 402.5920790327.

The spelling of 65252278 in words is "sixty-five million, two hundred fifty-two thousand, two hundred seventy-eight".