55463395680 has 480 divisors, whose sum is σ = 244043331840. Its totient is φ = 11524654080.

The previous prime is 55463395667. The next prime is 55463395693. The reversal of 55463395680 is 8659336455.

It is a happy number.

55463395680 is a `hidden beast` number, since 5 + 5 + 46 + 3 + 39 + 568 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (55463395667) and next prime (55463395693).

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 970131 + ... + 1025709.

It is an arithmetic number, because the mean of its divisors is an integer number (508423608).

Almost surely, 2^55463395680 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 55463395680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122021665920).

55463395680 is an abundant number, since it is smaller than the sum of its proper divisors (188579936160).

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

55463395680 is a wasteful number, since it uses less digits than its factorization.

55463395680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55624 (or 55607 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 55463395680 in words is "fifty-five billion, four hundred sixty-three million, three hundred ninety-five thousand, six hundred eighty".