2150554405 has 8 divisors (see below), whose sum is σ = 2581632792. Its totient is φ = 1719798528.

The previous prime is 2150554391. The next prime is 2150554423. The reversal of 2150554405 is 5044550512.

It can be written as a sum of positive squares in 4 ways, for example, as 922822884 + 1227731521 = 30378^2 + 35039^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2150554405 - 2¹⁷ = 2150423333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65704 + ... + 92833.

It is an arithmetic number, because the mean of its divisors is an integer number (322704099).

Almost surely, 2^2150554405 is an apocalyptic number.

It is an amenable number.

2150554405 is a deficient number, since it is larger than the sum of its proper divisors (431078387).

2150554405 is a wasteful number, since it uses less digits than its factorization.

2150554405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161255.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2150554405 is about 46374.0703949955. The cubic root of 2150554405 is about 1290.7738091172.

The spelling of 2150554405 in words is "two billion, one hundred fifty million, five hundred fifty-four thousand, four hundred five".