52576213781 has 16 divisors (see below), whose sum is σ = 66940540800. Its totient is φ = 40164320448.

The previous prime is 52576213777. The next prime is 52576213801. The reversal of 52576213781 is 18731267525.

It is not a de Polignac number, because 52576213781 - 2² = 52576213777 is a prime.

It is a super-2 number, since 2×52576213781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52576213741) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9958751 + ... + 9964028.

It is an arithmetic number, because the mean of its divisors is an integer number (4183783800).

Almost surely, 2^52576213781 is an apocalyptic number.

It is an amenable number.

52576213781 is a deficient number, since it is larger than the sum of its proper divisors (14364327019).

52576213781 is a wasteful number, since it uses less digits than its factorization.

52576213781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19922828.

The product of its digits is 705600, while the sum is 47.

The spelling of 52576213781 in words is "fifty-two billion, five hundred seventy-six million, two hundred thirteen thousand, seven hundred eighty-one".