55271435604 has 288 divisors, whose sum is σ = 165561532416. Its totient is φ = 14044800000.

The previous prime is 55271435581. The next prime is 55271435621. The reversal of 55271435604 is 40653417255.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 137833804 + ... + 137834204.

It is an arithmetic number, because the mean of its divisors is an integer number (574866432).

Almost surely, 2^55271435604 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 55271435604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82780766208).

55271435604 is an abundant number, since it is smaller than the sum of its proper divisors (110290096812).

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

55271435604 is a wasteful number, since it uses less digits than its factorization.

55271435604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 55271435604 in words is "fifty-five billion, two hundred seventy-one million, four hundred thirty-five thousand, six hundred four".