57062921 has 2 divisors, whose sum is σ = 57062922. Its totient is φ = 57062920.

The previous prime is 57062911. The next prime is 57062983. The reversal of 57062921 is 12926075.

57062921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 22429696 = 5885^2 + 4736^2 .

It is a cyclic number.

It is not a de Polignac number, because 57062921 - 2¹⁴ = 57046537 is a prime.

It is not a weakly prime, because it can be changed into another prime (57062911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28531460 + 28531461.

It is an arithmetic number, because the mean of its divisors is an integer number (28531461).

Almost surely, 2^57062921 is an apocalyptic number.

It is an amenable number.

57062921 is a deficient number, since it is larger than the sum of its proper divisors (1).

57062921 is an equidigital number, since it uses as much as digits as its factorization.

57062921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 57062921 is about 7554.0003309505. Note that the first 3 decimals coincide. The cubic root of 57062921 is about 384.9916701408.

Adding to 57062921 its reverse (12926075), we get a palindrome (69988996).

The spelling of 57062921 in words is "fifty-seven million, sixty-two thousand, nine hundred twenty-one".