20524412242 has 4 divisors (see below), whose sum is σ = 30786618366. Its totient is φ = 10262206120.

The previous prime is 20524412231. The next prime is 20524412267. The reversal of 20524412242 is 24221442502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16304480721 + 4219931521 = 127689^2 + 64961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20524412242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5131103059 + ... + 5131103062.

Almost surely, 2^20524412242 is an apocalyptic number.

20524412242 is a deficient number, since it is larger than the sum of its proper divisors (10262206124).

20524412242 is a wasteful number, since it uses less digits than its factorization.

20524412242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262206123.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 20524412242 its reverse (24221442502), we get a palindrome (44745854744).

The spelling of 20524412242 in words is "twenty billion, five hundred twenty-four million, four hundred twelve thousand, two hundred forty-two".