51225363063642 has 16 divisors (see below), whose sum is σ = 102551266596960. Its totient is φ = 17058364276272.

The previous prime is 51225363063587. The next prime is 51225363063659. The reversal of 51225363063642 is 24636036352215.

It is a junction number, because it is equal to n+sod(n) for n = 51225363063591 and 51225363063600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189179613 + ... + 4189191840.

It is an arithmetic number, because the mean of its divisors is an integer number (6409454162310).

Almost surely, 2^{51225363063642} is an apocalyptic number.

51225363063642 is an abundant number, since it is smaller than the sum of its proper divisors (51325903533318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51225363063642 is a wasteful number, since it uses less digits than its factorization.

51225363063642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378372477.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 51225363063642 in words is "fifty-one trillion, two hundred twenty-five billion, three hundred sixty-three million, sixty-three thousand, six hundred forty-two".