56820053487 has 8 divisors (see below), whose sum is σ = 76510171440. Its totient is φ = 37504985600.

The previous prime is 56820053383. The next prime is 56820053491. The reversal of 56820053487 is 78435002865.

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-56820053487 is a prime.

It is a super-3 number, since 3×56820053487³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56820053687) 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, 93762162 + ... + 93762767.

It is an arithmetic number, because the mean of its divisors is an integer number (9563771430).

Almost surely, 2^56820053487 is an apocalyptic number.

56820053487 is a deficient number, since it is larger than the sum of its proper divisors (19690117953).

56820053487 is a wasteful number, since it uses less digits than its factorization.

56820053487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187525033.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 56820053487 in words is "fifty-six billion, eight hundred twenty million, fifty-three thousand, four hundred eighty-seven".