57280673 has 2 divisors, whose sum is σ = 57280674. Its totient is φ = 57280672.

The previous prime is 57280627. The next prime is 57280693. The reversal of 57280673 is 37608275.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48888064 + 8392609 = 6992^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 57280673 - 2¹² = 57276577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57280693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28640336 + 28640337.

It is an arithmetic number, because the mean of its divisors is an integer number (28640337).

Almost surely, 2^57280673 is an apocalyptic number.

It is an amenable number.

57280673 is a deficient number, since it is larger than the sum of its proper divisors (1).

57280673 is an equidigital number, since it uses as much as digits as its factorization.

57280673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 57280673 is about 7568.3996326833. The cubic root of 57280673 is about 385.4807577131.

The spelling of 57280673 in words is "fifty-seven million, two hundred eighty thousand, six hundred seventy-three".