65055931 has 2 divisors, whose sum is σ = 65055932. Its totient is φ = 65055930.

The previous prime is 65055919. The next prime is 65055941. The reversal of 65055931 is 13955056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65055931 - 2⁷ = 65055803 is a prime.

It is a super-2 number, since 2×65055931² = 8464548316553522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65055911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32527965 + 32527966.

It is an arithmetic number, because the mean of its divisors is an integer number (32527966).

Almost surely, 2^65055931 is an apocalyptic number.

65055931 is a deficient number, since it is larger than the sum of its proper divisors (1).

65055931 is an equidigital number, since it uses as much as digits as its factorization.

65055931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 65055931 is about 8065.7256958069. The cubic root of 65055931 is about 402.1878675209.

The spelling of 65055931 in words is "sixty-five million, fifty-five thousand, nine hundred thirty-one".