42555097720 has 32 divisors (see below), whose sum is σ = 99911970720. Its totient is φ = 16281950080.

The previous prime is 42555097693. The next prime is 42555097721. The reversal of 42555097720 is 2779055524.

42555097720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555097721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23126851 + ... + 23128690.

It is an arithmetic number, because the mean of its divisors is an integer number (3122249085).

Almost surely, 2^42555097720 is an apocalyptic number.

42555097720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42555097720 is an abundant number, since it is smaller than the sum of its proper divisors (57356873000).

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

42555097720 is a wasteful number, since it uses less digits than its factorization.

42555097720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46255575 (or 46255571 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 42555097720 in words is "forty-two billion, five hundred fifty-five million, ninety-seven thousand, seven hundred twenty".