57447653 has 2 divisors, whose sum is σ = 57447654. Its totient is φ = 57447652.

The previous prime is 57447647. The next prime is 57447671. The reversal of 57447653 is 35674475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44930209 + 12517444 = 6703^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 57447653 - 2⁶ = 57447589 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57447653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57447623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28723826 + 28723827.

It is an arithmetic number, because the mean of its divisors is an integer number (28723827).

Almost surely, 2^57447653 is an apocalyptic number.

It is an amenable number.

57447653 is a deficient number, since it is larger than the sum of its proper divisors (1).

57447653 is an equidigital number, since it uses as much as digits as its factorization.

57447653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 41.

The square root of 57447653 is about 7579.4229991471. The cubic root of 57447653 is about 385.8549684679.

The spelling of 57447653 in words is "fifty-seven million, four hundred forty-seven thousand, six hundred fifty-three".