55565478150 has 576 divisors, whose sum is σ = 183908229120. Its totient is φ = 10973491200.

The previous prime is 55565478139. The next prime is 55565478173. The reversal of 55565478150 is 5187456555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55565478093 and 55565478102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 230562030 + ... + 230562270.

It is an arithmetic number, because the mean of its divisors is an integer number (319285120).

Almost surely, 2^55565478150 is an apocalyptic number.

55565478150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55565478150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91954114560).

55565478150 is an abundant number, since it is smaller than the sum of its proper divisors (128342750970).

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

55565478150 is a wasteful number, since it uses less digits than its factorization.

55565478150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 4200000, while the sum is 51.

The spelling of 55565478150 in words is "fifty-five billion, five hundred sixty-five million, four hundred seventy-eight thousand, one hundred fifty".