20245231455 has 16 divisors (see below), whose sum is σ = 32848602624. Its totient is φ = 10645379360.

The previous prime is 20245231403. The next prime is 20245231459. The reversal of 20245231455 is 55413254202.

It is a happy number.

It is not a de Polignac number, because 20245231455 - 2⁸ = 20245231199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245231459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9503739 + ... + 9505868.

It is an arithmetic number, because the mean of its divisors is an integer number (2053037664).

Almost surely, 2^20245231455 is an apocalyptic number.

20245231455 is a deficient number, since it is larger than the sum of its proper divisors (12603371169).

20245231455 is a wasteful number, since it uses less digits than its factorization.

20245231455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19009686.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 20245231455 its reverse (55413254202), we get a palindrome (75658485657).

The spelling of 20245231455 in words is "twenty billion, two hundred forty-five million, two hundred thirty-one thousand, four hundred fifty-five".