25211452534442 has 32 divisors (see below), whose sum is σ = 38783649139200. Its totient is φ = 12288208142848.

The previous prime is 25211452534423. The next prime is 25211452534451. The reversal of 25211452534442 is 24443525411252.

It is a junction number, because it is equal to n+sod(n) for n = 25211452534393 and 25211452534402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5295458 + ... + 8858034.

It is an arithmetic number, because the mean of its divisors is an integer number (1211989035600).

Almost surely, 2^{25211452534442} is an apocalyptic number.

25211452534442 is a deficient number, since it is larger than the sum of its proper divisors (13572196604758).

25211452534442 is a wasteful number, since it uses less digits than its factorization.

25211452534442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563230.

The product of its digits is 1536000, while the sum is 44.

Adding to 25211452534442 its reverse (24443525411252), we get a palindrome (49654977945694).

The spelling of 25211452534442 in words is "twenty-five trillion, two hundred eleven billion, four hundred fifty-two million, five hundred thirty-four thousand, four hundred forty-two".