51573528521432 has 32 divisors (see below), whose sum is σ = 96722292769200. Its totient is φ = 25780917694464.

The previous prime is 51573528521407. The next prime is 51573528521461. The reversal of 51573528521432 is 23412582537515.

It is a congruent number.

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, 1318760423 + ... + 1318799529.

Almost surely, 2^{51573528521432} is an apocalyptic number.

It is an amenable number.

51573528521432 is a deficient number, since it is larger than the sum of its proper divisors (45148764247768).

51573528521432 is a wasteful number, since it uses less digits than its factorization.

51573528521432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72275 (or 72271 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 53.

The spelling of 51573528521432 in words is "fifty-one trillion, five hundred seventy-three billion, five hundred twenty-eight million, five hundred twenty-one thousand, four hundred thirty-two".