5458991521 has 8 divisors (see below), whose sum is σ = 5555138688. Its totient is φ = 5363670000.

The previous prime is 5458991509. The next prime is 5458991537. The reversal of 5458991521 is 1251998545.

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

It is a cyclic number.

It is not a de Polignac number, because 5458991521 - 2⁷ = 5458991393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5458991501) 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, 193065 + ... + 219526.

It is an arithmetic number, because the mean of its divisors is an integer number (694392336).

Almost surely, 2^5458991521 is an apocalyptic number.

It is an amenable number.

5458991521 is a deficient number, since it is larger than the sum of its proper divisors (96147167).

5458991521 is a wasteful number, since it uses less digits than its factorization.

5458991521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412823.

The product of its digits is 648000, while the sum is 49.

The square root of 5458991521 is about 73884.9884685651. The cubic root of 5458991521 is about 1760.7761213035.

The spelling of 5458991521 in words is "five billion, four hundred fifty-eight million, nine hundred ninety-one thousand, five hundred twenty-one".