51225051433442 has 32 divisors (see below), whose sum is σ = 81879009062400. Its totient is φ = 23995642325760.

The previous prime is 51225051433441. The next prime is 51225051433447. The reversal of 51225051433442 is 24433415052215.

It is a self number, because there is not a number n which added to its sum of digits gives 51225051433442.

It is not an unprimeable number, because it can be changed into a prime (51225051433441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84717317 + ... + 85319832.

It is an arithmetic number, because the mean of its divisors is an integer number (2558719033200).

Almost surely, 2^{51225051433442} is an apocalyptic number.

51225051433442 is a deficient number, since it is larger than the sum of its proper divisors (30653957628958).

51225051433442 is a wasteful number, since it uses less digits than its factorization.

51225051433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170037338.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 51225051433442 its reverse (24433415052215), we get a palindrome (75658466485657).

The spelling of 51225051433442 in words is "fifty-one trillion, two hundred twenty-five billion, fifty-one million, four hundred thirty-three thousand, four hundred forty-two".