5578664551 has 4 divisors (see below), whose sum is σ = 5758621504. Its totient is φ = 5398707600.

The previous prime is 5578664527. The next prime is 5578664561. The reversal of 5578664551 is 1554668755.

It is a happy number.

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 5578664551 - 2⁵ = 5578664519 is a prime.

It is a super-2 number, since 2×5578664551² = 62242996345168063202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5578664561) 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, 89978430 + ... + 89978491.

It is an arithmetic number, because the mean of its divisors is an integer number (1439655376).

Almost surely, 2^5578664551 is an apocalyptic number.

5578664551 is a deficient number, since it is larger than the sum of its proper divisors (179956953).

5578664551 is a wasteful number, since it uses less digits than its factorization.

5578664551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179956952.

The product of its digits is 5040000, while the sum is 52.

The square root of 5578664551 is about 74690.4582326283. The cubic root of 5578664551 is about 1773.5499154327.

The spelling of 5578664551 in words is "five billion, five hundred seventy-eight million, six hundred sixty-four thousand, five hundred fifty-one".