2542040225 has 6 divisors (see below), whose sum is σ = 3152129910. Its totient is φ = 2033632160.

The previous prime is 2542040213. The next prime is 2542040317. The reversal of 2542040225 is 5220402452.

It can be written as a sum of positive squares in 3 ways, for example, as 104939536 + 2437100689 = 10244^2 + 49367^2 .

It is not a de Polignac number, because 2542040225 - 2²⁴ = 2525263009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2542040194 and 2542040203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50840780 + ... + 50840829.

It is an arithmetic number, because the mean of its divisors is an integer number (525354985).

Almost surely, 2^2542040225 is an apocalyptic number.

2542040225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2542040225 is a deficient number, since it is larger than the sum of its proper divisors (610089685).

2542040225 is a wasteful number, since it uses less digits than its factorization.

2542040225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101681619 (or 101681614 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 2542040225 is about 50418.6495753308. The cubic root of 2542040225 is about 1364.7742071298.

Adding to 2542040225 its reverse (5220402452), we get a palindrome (7762442677).

The spelling of 2542040225 in words is "two billion, five hundred forty-two million, forty thousand, two hundred twenty-five".