5505736921 has 4 divisors (see below), whose sum is σ = 5511078144. Its totient is φ = 5500395700.

The previous prime is 5505736903. The next prime is 5505736931. The reversal of 5505736921 is 1296375055.

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.

It is a cyclic number.

It is not a de Polignac number, because 5505736921 - 2⁵ = 5505736889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5505736931) 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, 2669065 + ... + 2671126.

It is an arithmetic number, because the mean of its divisors is an integer number (1377769536).

Almost surely, 2^5505736921 is an apocalyptic number.

It is an amenable number.

5505736921 is a deficient number, since it is larger than the sum of its proper divisors (5341223).

5505736921 is a wasteful number, since it uses less digits than its factorization.

5505736921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341222.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 5505736921 is about 74200.6531035947. The cubic root of 5505736921 is about 1765.7876916526.

The spelling of 5505736921 in words is "five billion, five hundred five million, seven hundred thirty-six thousand, nine hundred twenty-one".