5497309021 has 4 divisors (see below), whose sum is σ = 5539273344. Its totient is φ = 5455344700.

The previous prime is 5497309001. The next prime is 5497309031. The reversal of 5497309021 is 1209037945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1209037945 = 5 ⋅241807589.

It is a cyclic number.

It is not a de Polignac number, because 5497309021 - 2²³ = 5488920413 is a prime.

It is a Smith number, since the sum of its digits (40) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5497309001) 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, 20981965 + ... + 20982226.

It is an arithmetic number, because the mean of its divisors is an integer number (1384818336).

Almost surely, 2^5497309021 is an apocalyptic number.

It is an amenable number.

5497309021 is a deficient number, since it is larger than the sum of its proper divisors (41964323).

5497309021 is a wasteful number, since it uses less digits than its factorization.

5497309021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41964322.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 5497309021 is about 74143.8400745470. The cubic root of 5497309021 is about 1764.8862390866.

The spelling of 5497309021 in words is "five billion, four hundred ninety-seven million, three hundred nine thousand, twenty-one".