57416621 has 2 divisors, whose sum is σ = 57416622. Its totient is φ = 57416620.

The previous prime is 57416609. The next prime is 57416641. The reversal of 57416621 is 12661475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 2449225 = 7414^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 57416621 - 2¹⁴ = 57400237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57416641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28708310 + 28708311.

It is an arithmetic number, because the mean of its divisors is an integer number (28708311).

Almost surely, 2^57416621 is an apocalyptic number.

It is an amenable number.

57416621 is a deficient number, since it is larger than the sum of its proper divisors (1).

57416621 is an equidigital number, since it uses as much as digits as its factorization.

57416621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 57416621 is about 7577.3756010904. The cubic root of 57416621 is about 385.7854790724.

The spelling of 57416621 in words is "fifty-seven million, four hundred sixteen thousand, six hundred twenty-one".