42520415340450 has 24 divisors (see below), whose sum is σ = 105450630044688. Its totient is φ = 11338777424080.

The previous prime is 42520415340439. The next prime is 42520415340451. The reversal of 42520415340450 is 5404351402524.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42520415340399 and 42520415340408.

It is not an unprimeable number, because it can be changed into a prime (42520415340451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141734717652 + ... + 141734717951.

It is an arithmetic number, because the mean of its divisors is an integer number (4393776251862).

Almost surely, 2^{42520415340450} is an apocalyptic number.

42520415340450 is an abundant number, since it is smaller than the sum of its proper divisors (62930214704238).

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

42520415340450 is a wasteful number, since it uses less digits than its factorization.

42520415340450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283469435618 (or 283469435613 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 42520415340450 its reverse (5404351402524), we get a palindrome (47924766742974).

The spelling of 42520415340450 in words is "forty-two trillion, five hundred twenty billion, four hundred fifteen million, three hundred forty thousand, four hundred fifty".