42555005424 has 160 divisors (see below), whose sum is σ = 123042124800. Its totient is φ = 14081679360.

The previous prime is 42555005407. The next prime is 42555005429. The reversal of 42555005424 is 42450055524.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555005429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66181647 + ... + 66182289.

It is an arithmetic number, because the mean of its divisors is an integer number (769013280).

Almost surely, 2^42555005424 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 42555005424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61521062400).

42555005424 is an abundant number, since it is smaller than the sum of its proper divisors (80487119376).

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

42555005424 is a wasteful number, since it uses less digits than its factorization.

42555005424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 42555005424 in words is "forty-two billion, five hundred fifty-five million, five thousand, four hundred twenty-four".