65255631 has 8 divisors (see below), whose sum is σ = 99437184. Its totient is φ = 37288920.

The previous prime is 65255629. The next prime is 65255681. The reversal of 65255631 is 13655256.

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

It is not a de Polignac number, because 65255631 - 2¹ = 65255629 is a prime.

It is a super-2 number, since 2×65255631² = 8516594754416322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65255592 and 65255601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65255681) 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, 1553685 + ... + 1553726.

It is an arithmetic number, because the mean of its divisors is an integer number (12429648).

Almost surely, 2^65255631 is an apocalyptic number.

65255631 is a deficient number, since it is larger than the sum of its proper divisors (34181553).

65255631 is a wasteful number, since it uses less digits than its factorization.

65255631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107421.

The product of its digits is 27000, while the sum is 33.

The square root of 65255631 is about 8078.0957533320. The cubic root of 65255631 is about 402.5989746700.

The spelling of 65255631 in words is "sixty-five million, two hundred fifty-five thousand, six hundred thirty-one".