5490481821 has 8 divisors (see below), whose sum is σ = 7986155424. Its totient is φ = 3327564720.

The previous prime is 5490481817. The next prime is 5490481853. The reversal of 5490481821 is 1281840945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5490481821 - 2² = 5490481817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5490481121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83189086 + ... + 83189151.

It is an arithmetic number, because the mean of its divisors is an integer number (998269428).

Almost surely, 2^5490481821 is an apocalyptic number.

It is an amenable number.

5490481821 is a deficient number, since it is larger than the sum of its proper divisors (2495673603).

5490481821 is a wasteful number, since it uses less digits than its factorization.

5490481821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166378251.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 5490481821 is about 74097.7855337121. The cubic root of 5490481821 is about 1764.1553225129.

The spelling of 5490481821 in words is "five billion, four hundred ninety million, four hundred eighty-one thousand, eight hundred twenty-one".