55063788621 has 8 divisors (see below), whose sum is σ = 73420520544. Its totient is φ = 36708124560.

The previous prime is 55063788607. The next prime is 55063788643. The reversal of 55063788621 is 12688736055.

It is a happy number.

55063788621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55063788621 - 2²¹ = 55061691469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55063788671) 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, 137706 + ... + 359291.

It is an arithmetic number, because the mean of its divisors is an integer number (9177565068).

Almost surely, 2^55063788621 is an apocalyptic number.

It is an amenable number.

55063788621 is a deficient number, since it is larger than the sum of its proper divisors (18356731923).

55063788621 is a wasteful number, since it uses less digits than its factorization.

55063788621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533931.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 55063788621 in words is "fifty-five billion, sixty-three million, seven hundred eighty-eight thousand, six hundred twenty-one".