2554321515 has 16 divisors (see below), whose sum is σ = 4156185600. Its totient is φ = 1339214432.

The previous prime is 2554321507. The next prime is 2554321543. The reversal of 2554321515 is 5151234552.

It is a cyclic number.

It is not a de Polignac number, because 2554321515 - 2³ = 2554321507 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442235 + ... + 1444004.

It is an arithmetic number, because the mean of its divisors is an integer number (259761600).

Almost surely, 2^2554321515 is an apocalyptic number.

2554321515 is a deficient number, since it is larger than the sum of its proper divisors (1601864085).

2554321515 is a wasteful number, since it uses less digits than its factorization.

2554321515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886306.

The product of its digits is 30000, while the sum is 33.

The square root of 2554321515 is about 50540.2959528335. The cubic root of 2554321515 is about 1366.9685426417.

The spelling of 2554321515 in words is "two billion, five hundred fifty-four million, three hundred twenty-one thousand, five hundred fifteen".