5497541645 has 4 divisors (see below), whose sum is σ = 6597049980. Its totient is φ = 4398033312.

The previous prime is 5497541641. The next prime is 5497541657. The reversal of 5497541645 is 5461457945.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1083002281 + 4414539364 = 32909^2 + 66442^2 .

It is a cyclic number.

It is not a de Polignac number, because 5497541645 - 2² = 5497541641 is a prime.

It is a super-3 number, since 3×5497541645³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5497541593 and 5497541602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5497541641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549754160 + ... + 549754169.

It is an arithmetic number, because the mean of its divisors is an integer number (1649262495).

Almost surely, 2^5497541645 is an apocalyptic number.

It is an amenable number.

5497541645 is a deficient number, since it is larger than the sum of its proper divisors (1099508335).

5497541645 is a wasteful number, since it uses less digits than its factorization.

5497541645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099508334.

The product of its digits is 3024000, while the sum is 50.

The square root of 5497541645 is about 74145.4087924532. The cubic root of 5497541645 is about 1764.9111330304.

The spelling of 5497541645 in words is "five billion, four hundred ninety-seven million, five hundred forty-one thousand, six hundred forty-five".