57218553629 has 2 divisors, whose sum is σ = 57218553630. Its totient is φ = 57218553628.

The previous prime is 57218553611. The next prime is 57218553647. The reversal of 57218553629 is 92635581275.

It is a balanced prime because it is at equal distance from previous prime (57218553611) and next prime (57218553647).

It can be written as a sum of positive squares in only one way, i.e., 43880613529 + 13337940100 = 209477^2 + 115490^2 .

It is a cyclic number.

It is not a de Polignac number, because 57218553629 - 2⁸ = 57218553373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57218553929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28609276814 + 28609276815.

It is an arithmetic number, because the mean of its divisors is an integer number (28609276815).

Almost surely, 2^57218553629 is an apocalyptic number.

It is an amenable number.

57218553629 is a deficient number, since it is larger than the sum of its proper divisors (1).

57218553629 is an equidigital number, since it uses as much as digits as its factorization.

57218553629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536000, while the sum is 53.

The spelling of 57218553629 in words is "fifty-seven billion, two hundred eighteen million, five hundred fifty-three thousand, six hundred twenty-nine".