5495978641 has 4 divisors (see below), whose sum is σ = 5557731300. Its totient is φ = 5434225984.

The previous prime is 5495978629. The next prime is 5495978647. The reversal of 5495978641 is 1468795945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1468795945 = 5 ⋅293759189.

It can be written as a sum of positive squares in 2 ways, for example, as 3136448016 + 2359530625 = 56004^2 + 48575^2 .

It is a cyclic number.

It is not a de Polignac number, because 5495978641 - 2²¹ = 5493881489 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5495978647) 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, 30876196 + ... + 30876373.

It is an arithmetic number, because the mean of its divisors is an integer number (1389432825).

Almost surely, 2^5495978641 is an apocalyptic number.

It is an amenable number.

5495978641 is a deficient number, since it is larger than the sum of its proper divisors (61752659).

5495978641 is an equidigital number, since it uses as much as digits as its factorization.

5495978641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61752658.

The product of its digits is 10886400, while the sum is 58.

The square root of 5495978641 is about 74134.8679165209. The cubic root of 5495978641 is about 1764.7438567696.

The spelling of 5495978641 in words is "five billion, four hundred ninety-five million, nine hundred seventy-eight thousand, six hundred forty-one".