2005530154 has 8 divisors (see below), whose sum is σ = 3185253828. Its totient is φ = 943778880.

The previous prime is 2005530139. The next prime is 2005530169. The reversal of 2005530154 is 4510355002.

It is an interprime number because it is at equal distance from previous prime (2005530139) and next prime (2005530169).

It can be written as a sum of positive squares in 2 ways, for example, as 1929229929 + 76300225 = 43923^2 + 8735^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29493057 + ... + 29493124.

Almost surely, 2^2005530154 is an apocalyptic number.

2005530154 is a deficient number, since it is larger than the sum of its proper divisors (1179723674).

2005530154 is a wasteful number, since it uses less digits than its factorization.

2005530154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58986200.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2005530154 is about 44783.1458698471. The cubic root of 2005530154 is about 1261.0812407843.

Adding to 2005530154 its reverse (4510355002), we get a palindrome (6515885156).

The spelling of 2005530154 in words is "two billion, five million, five hundred thirty thousand, one hundred fifty-four".