55551703776 has 96 divisors (see below), whose sum is σ = 146553297408. Its totient is φ = 18424734720.

The previous prime is 55551703771. The next prime is 55551703799. The reversal of 55551703776 is 67730715555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551703771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29753595 + ... + 29755461.

It is an arithmetic number, because the mean of its divisors is an integer number (1526596848).

Almost surely, 2^55551703776 is an apocalyptic number.

It is an amenable number.

55551703776 is an abundant number, since it is smaller than the sum of its proper divisors (91001593632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55551703776 is a wasteful number, since it uses less digits than its factorization.

55551703776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 3858750, while the sum is 51.

The spelling of 55551703776 in words is "fifty-five billion, five hundred fifty-one million, seven hundred three thousand, seven hundred seventy-six".