258055557557 has 8 divisors (see below), whose sum is σ = 295058274816. Its totient is φ = 221087249712.

The previous prime is 258055557533. The next prime is 258055557559. The reversal of 258055557557 is 755755550852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258055557557 - 2⁸ = 258055557301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258055557496 and 258055557505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258055557559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8586278 + ... + 8616279.

It is an arithmetic number, because the mean of its divisors is an integer number (36882284352).

Almost surely, 2^258055557557 is an apocalyptic number.

It is an amenable number.

258055557557 is a deficient number, since it is larger than the sum of its proper divisors (37002717259).

258055557557 is a wasteful number, since it uses less digits than its factorization.

258055557557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17204707.

The product of its (nonzero) digits is 61250000, while the sum is 59.

The spelling of 258055557557 in words is "two hundred fifty-eight billion, fifty-five million, five hundred fifty-seven thousand, five hundred fifty-seven".