57354981121 has 3 divisors (see below), whose sum is σ = 57355220611. Its totient is φ = 57354741632.

The previous prime is 57354981023. The next prime is 57354981133. The reversal of 57354981121 is 12118945375.

The square root of 57354981121 is 239489.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 33749731521 + 23605249600 = 183711^2 + 153640^2 .

It is not a de Polignac number, because 57354981121 - 2³³ = 48765046529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57354981521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 119745 + ... + 359233.

Almost surely, 2^57354981121 is an apocalyptic number.

57354981121 is the 239489-th square number.

57354981121 is the 119745-th centered octagonal number.

It is an amenable number.

57354981121 is a deficient number, since it is larger than the sum of its proper divisors (239490).

57354981121 is an frugal number, since it uses more digits than its factorization.

57354981121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478978 (or 239489 counting only the distinct ones).

The product of its digits is 302400, while the sum is 46.

The spelling of 57354981121 in words is "fifty-seven billion, three hundred fifty-four million, nine hundred eighty-one thousand, one hundred twenty-one".