57481008181 has 2 divisors, whose sum is σ = 57481008182. Its totient is φ = 57481008180.

The previous prime is 57481008103. The next prime is 57481008197. The reversal of 57481008181 is 18180018475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48721732900 + 8759275281 = 220730^2 + 93591^2 .

It is a cyclic number.

It is not a de Polignac number, because 57481008181 - 2²⁷ = 57346790453 is a prime.

It is a super-2 number, since 2×57481008181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57481005181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28740504090 + 28740504091.

It is an arithmetic number, because the mean of its divisors is an integer number (28740504091).

Almost surely, 2^57481008181 is an apocalyptic number.

It is an amenable number.

57481008181 is a deficient number, since it is larger than the sum of its proper divisors (1).

57481008181 is an equidigital number, since it uses as much as digits as its factorization.

57481008181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 43.

The spelling of 57481008181 in words is "fifty-seven billion, four hundred eighty-one million, eight thousand, one hundred eighty-one".