52535978981 has 8 divisors (see below), whose sum is σ = 53932604544. Its totient is φ = 51144842080.

The previous prime is 52535978947. The next prime is 52535978983. The reversal of 52535978981 is 18987953525.

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

It is a cyclic number.

It is not a de Polignac number, because 52535978981 - 2¹⁰ = 52535977957 is a prime.

It is a super-2 number, since 2×52535978981² (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 (52535978983) 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, 1352765 + ... + 1391058.

It is an arithmetic number, because the mean of its divisors is an integer number (6741575568).

Almost surely, 2^52535978981 is an apocalyptic number.

It is an amenable number.

52535978981 is a deficient number, since it is larger than the sum of its proper divisors (1396625563).

52535978981 is a wasteful number, since it uses less digits than its factorization.

52535978981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744331.

The product of its digits is 27216000, while the sum is 62.

The spelling of 52535978981 in words is "fifty-two billion, five hundred thirty-five million, nine hundred seventy-eight thousand, nine hundred eighty-one".