42513254556 has 48 divisors (see below), whose sum is σ = 103692196608. Its totient is φ = 13531161600.

The previous prime is 42513254551. The next prime is 42513254569. The reversal of 42513254556 is 65545231524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42513254551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22716 + ... + 292476.

It is an arithmetic number, because the mean of its divisors is an integer number (2160254096).

Almost surely, 2^42513254556 is an apocalyptic number.

42513254556 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42513254556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51846098304).

42513254556 is an abundant number, since it is smaller than the sum of its proper divisors (61178942052).

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

42513254556 is a wasteful number, since it uses less digits than its factorization.

42513254556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270362 (or 270360 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

The spelling of 42513254556 in words is "forty-two billion, five hundred thirteen million, two hundred fifty-four thousand, five hundred fifty-six".