55405719696 has 80 divisors (see below), whose sum is σ = 145904629760. Its totient is φ = 18113846400.

The previous prime is 55405719647. The next prime is 55405719701. The reversal of 55405719696 is 69691750455.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524211 + ... + 620973.

It is an arithmetic number, because the mean of its divisors is an integer number (1823807872).

Almost surely, 2^55405719696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55405719696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72952314880).

55405719696 is an abundant number, since it is smaller than the sum of its proper divisors (90498910064).

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

55405719696 is a wasteful number, since it uses less digits than its factorization.

55405719696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97004 (or 96998 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 55405719696 in words is "fifty-five billion, four hundred five million, seven hundred nineteen thousand, six hundred ninety-six".