25553200442 has 32 divisors (see below), whose sum is σ = 47843426304. Its totient is φ = 9944204400.

The previous prime is 25553200423. The next prime is 25553200493. The reversal of 25553200442 is 24400235552.

It is a junction number, because it is equal to n+sod(n) for n = 25553200399 and 25553200408.

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, 36767 + ... + 229037.

It is an arithmetic number, because the mean of its divisors is an integer number (1495107072).

Almost surely, 2^25553200442 is an apocalyptic number.

25553200442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25553200442 is a deficient number, since it is larger than the sum of its proper divisors (22290225862).

25553200442 is a wasteful number, since it uses less digits than its factorization.

25553200442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193154.

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 25553200442 its reverse (24400235552), we get a palindrome (49953435994).

The spelling of 25553200442 in words is "twenty-five billion, five hundred fifty-three million, two hundred thousand, four hundred forty-two".