55272263424 has 432 divisors, whose sum is σ = 188015950080. Its totient is φ = 14306181120.

The previous prime is 55272263411. The next prime is 55272263429. The reversal of 55272263424 is 42436227255.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55272263429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16443504 + ... + 16446864.

Almost surely, 2^55272263424 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 55272263424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94007975040).

55272263424 is an abundant number, since it is smaller than the sum of its proper divisors (132743686656).

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

55272263424 is a wasteful number, since it uses less digits than its factorization.

55272263424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3415 counting only the distinct ones).

The product of its digits is 806400, while the sum is 42.

The spelling of 55272263424 in words is "fifty-five billion, two hundred seventy-two million, two hundred sixty-three thousand, four hundred twenty-four".