2542455545 has 32 divisors (see below), whose sum is σ = 3627810816. Its totient is φ = 1673784000.

The previous prime is 2542455541. The next prime is 2542455557. The reversal of 2542455545 is 5455542452.

It is not a de Polignac number, because 2542455545 - 2² = 2542455541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2542455541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128570 + ... + 147020.

It is an arithmetic number, because the mean of its divisors is an integer number (113369088).

Almost surely, 2^2542455545 is an apocalyptic number.

It is an amenable number.

2542455545 is a deficient number, since it is larger than the sum of its proper divisors (1085355271).

2542455545 is a wasteful number, since it uses less digits than its factorization.

2542455545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18621.

The product of its digits is 800000, while the sum is 41.

The square root of 2542455545 is about 50422.7681211573. The cubic root of 2542455545 is about 1364.8485289484.

Adding to 2542455545 its reverse (5455542452), we get a palindrome (7997997997).

The spelling of 2542455545 in words is "two billion, five hundred forty-two million, four hundred fifty-five thousand, five hundred forty-five".