57131858587 has 2 divisors, whose sum is σ = 57131858588. Its totient is φ = 57131858586.

The previous prime is 57131858543. The next prime is 57131858603. The reversal of 57131858587 is 78585813175.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57131858587 - 2¹¹ = 57131856539 is a prime.

It is not a weakly prime, because it can be changed into another prime (57131858687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28565929293 + 28565929294.

It is an arithmetic number, because the mean of its divisors is an integer number (28565929294).

Almost surely, 2^57131858587 is an apocalyptic number.

57131858587 is a deficient number, since it is larger than the sum of its proper divisors (1).

57131858587 is an equidigital number, since it uses as much as digits as its factorization.

57131858587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408000, while the sum is 58.

The spelling of 57131858587 in words is "fifty-seven billion, one hundred thirty-one million, eight hundred fifty-eight thousand, five hundred eighty-seven".