2545542215 has 16 divisors (see below), whose sum is σ = 3155333376. Its totient is φ = 1969401600.

The previous prime is 2545542199. The next prime is 2545542221. The reversal of 2545542215 is 5122455452.

It is not a de Polignac number, because 2545542215 - 2⁴ = 2545542199 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 15 ways as a sum of consecutive naturals, for example, 265139 + ... + 274571.

It is an arithmetic number, because the mean of its divisors is an integer number (197208336).

Almost surely, 2^2545542215 is an apocalyptic number.

2545542215 is a deficient number, since it is larger than the sum of its proper divisors (609791161).

2545542215 is a wasteful number, since it uses less digits than its factorization.

2545542215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210.

The product of its digits is 80000, while the sum is 35.

The square root of 2545542215 is about 50453.3667360266. The cubic root of 2545542215 is about 1365.4006373619.

Adding to 2545542215 its reverse (5122455452), we get a palindrome (7667997667).

The spelling of 2545542215 in words is "two billion, five hundred forty-five million, five hundred forty-two thousand, two hundred fifteen".