5478581251 has 12 divisors (see below), whose sum is σ = 6485137456. Its totient is φ = 4597409520.

The previous prime is 5478581233. The next prime is 5478581263. The reversal of 5478581251 is 1521858745.

It is not a de Polignac number, because 5478581251 - 2¹⁹ = 5478056963 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478581651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1739871 + ... + 1743016.

Almost surely, 2^5478581251 is an apocalyptic number.

5478581251 is a deficient number, since it is larger than the sum of its proper divisors (1006556205).

5478581251 is a wasteful number, since it uses less digits than its factorization.

5478581251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482922 (or 3482911 counting only the distinct ones).

The product of its digits is 448000, while the sum is 46.

The square root of 5478581251 is about 74017.4388303189. The cubic root of 5478581251 is about 1762.8798035747.

The spelling of 5478581251 in words is "five billion, four hundred seventy-eight million, five hundred eighty-one thousand, two hundred fifty-one".