55891725846 has 64 divisors (see below), whose sum is σ = 123913670400. Its totient is φ = 16665676160.

The previous prime is 55891725709. The next prime is 55891725871. The reversal of 55891725846 is 64852719855.

It is a self number, because there is not a number n which added to its sum of digits gives 55891725846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025680 + ... + 1078796.

It is an arithmetic number, because the mean of its divisors is an integer number (1936151100).

Almost surely, 2^55891725846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55891725846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61956835200).

55891725846 is an abundant number, since it is smaller than the sum of its proper divisors (68021944554).

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

55891725846 is a wasteful number, since it uses less digits than its factorization.

55891725846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53389.

The product of its digits is 24192000, while the sum is 60.

The spelling of 55891725846 in words is "fifty-five billion, eight hundred ninety-one million, seven hundred twenty-five thousand, eight hundred forty-six".