20252432045 has 4 divisors (see below), whose sum is σ = 24302918460. Its totient is φ = 16201945632.

The previous prime is 20252432017. The next prime is 20252432047. The reversal of 20252432045 is 54023425202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3490210084 + 16762221961 = 59078^2 + 129469^2 .

It is a cyclic number.

It is not a de Polignac number, because 20252432045 - 2¹⁰ = 20252431021 is a prime.

It is a super-2 number, since 2×20252432045² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20252431999 and 20252432017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252432047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025243200 + ... + 2025243209.

It is an arithmetic number, because the mean of its divisors is an integer number (6075729615).

Almost surely, 2^20252432045 is an apocalyptic number.

It is an amenable number.

20252432045 is a deficient number, since it is larger than the sum of its proper divisors (4050486415).

20252432045 is an equidigital number, since it uses as much as digits as its factorization.

20252432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050486414.

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

Adding to 20252432045 its reverse (54023425202), we get a palindrome (74275857247).

The spelling of 20252432045 in words is "twenty billion, two hundred fifty-two million, four hundred thirty-two thousand, forty-five".