20245211524 has 12 divisors (see below), whose sum is σ = 36969516864. Its totient is φ = 9682492424.

The previous prime is 20245211521. The next prime is 20245211533. The reversal of 20245211524 is 42511254202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20245211492 and 20245211501.

It is not an unprimeable number, because it can be changed into a prime (20245211521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110028232 + ... + 110028415.

It is an arithmetic number, because the mean of its divisors is an integer number (3080793072).

Almost surely, 2^20245211524 is an apocalyptic number.

It is an amenable number.

20245211524 is a deficient number, since it is larger than the sum of its proper divisors (16724305340).

20245211524 is a wasteful number, since it uses less digits than its factorization.

20245211524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220056674 (or 220056672 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 20245211524 its reverse (42511254202), we get a palindrome (62756465726).

The spelling of 20245211524 in words is "twenty billion, two hundred forty-five million, two hundred eleven thousand, five hundred twenty-four".