65855274 has 16 divisors (see below), whose sum is σ = 134774112. Its totient is φ = 21441168.

The previous prime is 65855261. The next prime is 65855287. The reversal of 65855274 is 47255856.

It is an interprime number because it is at equal distance from previous prime (65855261) and next prime (65855287).

It is a super-2 number, since 2×65855274² = 8673834227230152, which contains 22 as substring.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 127369 + ... + 127884.

It is an arithmetic number, because the mean of its divisors is an integer number (8423382).

Almost surely, 2^65855274 is an apocalyptic number.

65855274 is an abundant number, since it is smaller than the sum of its proper divisors (68918838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65855274 is a wasteful number, since it uses less digits than its factorization.

65855274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255301.

The product of its digits is 336000, while the sum is 42.

The square root of 65855274 is about 8115.1262467074. The cubic root of 65855274 is about 403.8283957334.

The spelling of 65855274 in words is "sixty-five million, eight hundred fifty-five thousand, two hundred seventy-four".