51225546661632 has 108 divisors (see below), whose sum is σ = 168795290962480. Its totient is φ = 14635870470144.

The previous prime is 51225546661571. The next prime is 51225546661699. The reversal of 51225546661632 is 23616664552215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1588077457 + ... + 1588109712.

Almost surely, 2^{51225546661632} is an apocalyptic number.

It is an amenable number.

51225546661632 is an abundant number, since it is smaller than the sum of its proper divisors (117569744300848).

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

51225546661632 is a wasteful number, since it uses less digits than its factorization.

51225546661632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176187198 (or 3176187181 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 51225546661632 in words is "fifty-one trillion, two hundred twenty-five billion, five hundred forty-six million, six hundred sixty-one thousand, six hundred thirty-two".