22540245031 has 4 divisors (see below), whose sum is σ = 22543681864. Its totient is φ = 22536808200.

The previous prime is 22540245029. The next prime is 22540245083. The reversal of 22540245031 is 13054204522.

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

It is a cyclic number.

It is not a de Polignac number, because 22540245031 - 2¹ = 22540245029 is a prime.

It is a super-2 number, since 2×22540245031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540245131) 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, 1708560 + ... + 1721701.

It is an arithmetic number, because the mean of its divisors is an integer number (5635920466).

Almost surely, 2^22540245031 is an apocalyptic number.

22540245031 is a deficient number, since it is larger than the sum of its proper divisors (3436833).

22540245031 is an equidigital number, since it uses as much as digits as its factorization.

22540245031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436832.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22540245031 its reverse (13054204522), we get a palindrome (35594449553).

The spelling of 22540245031 in words is "twenty-two billion, five hundred forty million, two hundred forty-five thousand, thirty-one".