57460421 has 2 divisors, whose sum is σ = 57460422. Its totient is φ = 57460420.

The previous prime is 57460373. The next prime is 57460433. The reversal of 57460421 is 12406475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54184321 + 3276100 = 7361^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 57460421 - 2¹⁰ = 57459397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57460471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28730210 + 28730211.

It is an arithmetic number, because the mean of its divisors is an integer number (28730211).

Almost surely, 2^57460421 is an apocalyptic number.

It is an amenable number.

57460421 is a deficient number, since it is larger than the sum of its proper divisors (1).

57460421 is an equidigital number, since it uses as much as digits as its factorization.

57460421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 57460421 is about 7580.2652328266. The cubic root of 57460421 is about 385.8835523527.

Adding to 57460421 its reverse (12406475), we get a palindrome (69866896).

The spelling of 57460421 in words is "fifty-seven million, four hundred sixty thousand, four hundred twenty-one".