55405683764 has 24 divisors (see below), whose sum is σ = 97834359168. Its totient is φ = 27454041440.

The previous prime is 55405683757. The next prime is 55405683811. The reversal of 55405683764 is 46738650455.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86489 + ... + 343935.

It is an arithmetic number, because the mean of its divisors is an integer number (4076431632).

Almost surely, 2^55405683764 is an apocalyptic number.

It is an amenable number.

55405683764 is a deficient number, since it is larger than the sum of its proper divisors (42428675404).

55405683764 is a wasteful number, since it uses less digits than its factorization.

55405683764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257935 (or 257933 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 55405683764 in words is "fifty-five billion, four hundred five million, six hundred eighty-three thousand, seven hundred sixty-four".