52501788581 has 8 divisors (see below), whose sum is σ = 58081364928. Its totient is φ = 47056660000.

The previous prime is 52501788571. The next prime is 52501788601. The reversal of 52501788581 is 18588710525.

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-52501788581 is a prime.

It is a super-2 number, since 2×52501788581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52501788571) 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, 33611120 + ... + 33612681.

It is an arithmetic number, because the mean of its divisors is an integer number (7260170616).

Almost surely, 2^52501788581 is an apocalyptic number.

It is an amenable number.

52501788581 is a deficient number, since it is larger than the sum of its proper divisors (5579576347).

52501788581 is a wasteful number, since it uses less digits than its factorization.

52501788581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67223883.

The product of its (nonzero) digits is 896000, while the sum is 50.

The spelling of 52501788581 in words is "fifty-two billion, five hundred one million, seven hundred eighty-eight thousand, five hundred eighty-one".