5551926491 has 8 divisors (see below), whose sum is σ = 5649270000. Its totient is φ = 5454691200.

The previous prime is 5551926449. The next prime is 5551926503. The reversal of 5551926491 is 1946291555.

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 5551926491 - 2⁶ = 5551926427 is a prime.

It is a super-2 number, since 2×5551926491² = 61647775522935146162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551926791) 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, 80135 + ... + 132383.

It is an arithmetic number, because the mean of its divisors is an integer number (706158750).

Almost surely, 2^5551926491 is an apocalyptic number.

5551926491 is a deficient number, since it is larger than the sum of its proper divisors (97343509).

5551926491 is a wasteful number, since it uses less digits than its factorization.

5551926491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54109.

The product of its digits is 486000, while the sum is 47.

The square root of 5551926491 is about 74511.2507679209. The cubic root of 5551926491 is about 1770.7118856471.

The spelling of 5551926491 in words is "five billion, five hundred fifty-one million, nine hundred twenty-six thousand, four hundred ninety-one".