57491353 has 2 divisors, whose sum is σ = 57491354. Its totient is φ = 57491352.

The previous prime is 57491333. The next prime is 57491383. The reversal of 57491353 is 35319475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35617024 + 21874329 = 5968^2 + 4677^2 .

It is a cyclic number.

It is not a de Polignac number, because 57491353 - 2²¹ = 55394201 is a prime.

It is not a weakly prime, because it can be changed into another prime (57491323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745676 + 28745677.

It is an arithmetic number, because the mean of its divisors is an integer number (28745677).

Almost surely, 2^57491353 is an apocalyptic number.

It is an amenable number.

57491353 is a deficient number, since it is larger than the sum of its proper divisors (1).

57491353 is an equidigital number, since it uses as much as digits as its factorization.

57491353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 57491353 is about 7582.3052563188. The cubic root of 57491353 is about 385.9527826661.

The spelling of 57491353 in words is "fifty-seven million, four hundred ninety-one thousand, three hundred fifty-three".