72560311 has 2 divisors, whose sum is σ = 72560312. Its totient is φ = 72560310.

The previous prime is 72560309. The next prime is 72560317. The reversal of 72560311 is 11306527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72560311 - 2¹ = 72560309 is a prime.

Together with 72560309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72560317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36280155 + 36280156.

It is an arithmetic number, because the mean of its divisors is an integer number (36280156).

Almost surely, 2^72560311 is an apocalyptic number.

72560311 is a deficient number, since it is larger than the sum of its proper divisors (1).

72560311 is an equidigital number, since it uses as much as digits as its factorization.

72560311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 72560311 is about 8518.2340305958. The cubic root of 72560311 is about 417.0931382416.

Adding to 72560311 its reverse (11306527), we get a palindrome (83866838).

The spelling of 72560311 in words is "seventy-two million, five hundred sixty thousand, three hundred eleven".