5527458721 has 4 divisors (see below), whose sum is σ = 5540973700. Its totient is φ = 5513943744.

The previous prime is 5527458709. The next prime is 5527458731. The reversal of 5527458721 is 1278547255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1278547255 = 5 ⋅255709451.

It can be written as a sum of positive squares in 2 ways, for example, as 2375197696 + 3152261025 = 48736^2 + 56145^2 .

It is a cyclic number.

It is not a de Polignac number, because 5527458721 - 2⁷ = 5527458593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5527458731) 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, 6756876 + ... + 6757693.

It is an arithmetic number, because the mean of its divisors is an integer number (1385243425).

Almost surely, 2^5527458721 is an apocalyptic number.

It is an amenable number.

5527458721 is a deficient number, since it is larger than the sum of its proper divisors (13514979).

5527458721 is a wasteful number, since it uses less digits than its factorization.

5527458721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514978.

The product of its digits is 784000, while the sum is 46.

The square root of 5527458721 is about 74346.8810441971. The cubic root of 5527458721 is about 1768.1068335328.

The spelling of 5527458721 in words is "five billion, five hundred twenty-seven million, four hundred fifty-eight thousand, seven hundred twenty-one".