51225553031402 has 16 divisors (see below), whose sum is σ = 78675304560192. Its totient is φ = 25007217533760.

The previous prime is 51225553031377. The next prime is 51225553031491. The reversal of 51225553031402 is 20413035552215.

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, 1691490374 + ... + 1691520657.

It is an arithmetic number, because the mean of its divisors is an integer number (4917206535012).

Almost surely, 2^{51225553031402} is an apocalyptic number.

51225553031402 is a deficient number, since it is larger than the sum of its proper divisors (27449751528790).

51225553031402 is a wasteful number, since it uses less digits than its factorization.

51225553031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383011213.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 51225553031402 its reverse (20413035552215), we get a palindrome (71638588583617).

The spelling of 51225553031402 in words is "fifty-one trillion, two hundred twenty-five billion, five hundred fifty-three million, thirty-one thousand, four hundred two".