57218553611 has 2 divisors, whose sum is σ = 57218553612. Its totient is φ = 57218553610.

The previous prime is 57218553571. The next prime is 57218553629. The reversal of 57218553611 is 11635581275.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57218553611 is a prime.

It is a super-2 number, since 2×57218553611² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57218553661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28609276805 + 28609276806.

It is an arithmetic number, because the mean of its divisors is an integer number (28609276806).

Almost surely, 2^57218553611 is an apocalyptic number.

57218553611 is a deficient number, since it is larger than the sum of its proper divisors (1).

57218553611 is an equidigital number, since it uses as much as digits as its factorization.

57218553611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 44.

The spelling of 57218553611 in words is "fifty-seven billion, two hundred eighteen million, five hundred fifty-three thousand, six hundred eleven".