51532435523551 has 8 divisors (see below), whose sum is σ = 53844578049024. Its totient is φ = 49226259819000.

The previous prime is 51532435523539. The next prime is 51532435523561. The reversal of 51532435523551 is 15532553423515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51532435523551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51532435523495 and 51532435523504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532435523561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491687571 + ... + 1491722116.

It is an arithmetic number, because the mean of its divisors is an integer number (6730572256128).

Almost surely, 2^{51532435523551} is an apocalyptic number.

51532435523551 is a deficient number, since it is larger than the sum of its proper divisors (2312142525473).

51532435523551 is a wasteful number, since it uses less digits than its factorization.

51532435523551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983410461.

The product of its digits is 6750000, while the sum is 49.

The spelling of 51532435523551 in words is "fifty-one trillion, five hundred thirty-two billion, four hundred thirty-five million, five hundred twenty-three thousand, five hundred fifty-one".