42520322450 has 24 divisors (see below), whose sum is σ = 79263983700. Its totient is φ = 16970240000.

The previous prime is 42520322441. The next prime is 42520322459. The reversal of 42520322450 is 5422302524.

It is an interprime number because it is at equal distance from previous prime (42520322441) and next prime (42520322459).

It can be written as a sum of positive squares in 6 ways, for example, as 32863526089 + 9656796361 = 181283^2 + 98269^2 .

It is not an unprimeable number, because it can be changed into a prime (42520322459) 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, 924551 + ... + 969450.

Almost surely, 2^42520322450 is an apocalyptic number.

42520322450 is a deficient number, since it is larger than the sum of its proper divisors (36743661250).

42520322450 is a wasteful number, since it uses less digits than its factorization.

42520322450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894462 (or 1894457 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 42520322450 its reverse (5422302524), we get a palindrome (47942624974).

The spelling of 42520322450 in words is "forty-two billion, five hundred twenty million, three hundred twenty-two thousand, four hundred fifty".