42225215520 has 48 divisors (see below), whose sum is σ = 133009430400. Its totient is φ = 11260057344.

The previous prime is 42225215507. The next prime is 42225215563. The reversal of 42225215520 is 2551252224.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43984120 + ... + 43985079.

It is an arithmetic number, because the mean of its divisors is an integer number (2771029800).

Almost surely, 2^42225215520 is an apocalyptic number.

42225215520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42225215520 is an abundant number, since it is smaller than the sum of its proper divisors (90784214880).

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

42225215520 is a wasteful number, since it uses less digits than its factorization.

42225215520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87969217 (or 87969209 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 42225215520 its reverse (2551252224), we get a palindrome (44776467744).

The spelling of 42225215520 in words is "forty-two billion, two hundred twenty-five million, two hundred fifteen thousand, five hundred twenty".