57558623887 has 4 divisors (see below), whose sum is σ = 57565659136. Its totient is φ = 57551588640.

The previous prime is 57558623839. The next prime is 57558623891. The reversal of 57558623887 is 78832685575.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57558623887 - 2¹¹ = 57558621839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57558623387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3505338 + ... + 3521719.

It is an arithmetic number, because the mean of its divisors is an integer number (14391414784).

Almost surely, 2^57558623887 is an apocalyptic number.

57558623887 is a deficient number, since it is larger than the sum of its proper divisors (7035249).

57558623887 is an equidigital number, since it uses as much as digits as its factorization.

57558623887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035248.

The product of its digits is 112896000, while the sum is 64.

The spelling of 57558623887 in words is "fifty-seven billion, five hundred fifty-eight million, six hundred twenty-three thousand, eight hundred eighty-seven".