57253487 has 2 divisors, whose sum is σ = 57253488. Its totient is φ = 57253486.

The previous prime is 57253481. The next prime is 57253499. The reversal of 57253487 is 78435275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57253487 - 2¹⁰ = 57252463 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 (57253481) 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, 28626743 + 28626744.

It is an arithmetic number, because the mean of its divisors is an integer number (28626744).

Almost surely, 2^57253487 is an apocalyptic number.

57253487 is a deficient number, since it is larger than the sum of its proper divisors (1).

57253487 is an equidigital number, since it uses as much as digits as its factorization.

57253487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 41.

The square root of 57253487 is about 7566.6033991481. The cubic root of 57253487 is about 385.4197636774.

The spelling of 57253487 in words is "fifty-seven million, two hundred fifty-three thousand, four hundred eighty-seven".