20522455031 has 8 divisors (see below), whose sum is σ = 22110886224. Its totient is φ = 18935421120.

The previous prime is 20522455021. The next prime is 20522455043. The reversal of 20522455031 is 13055422502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20522455031 - 2²⁶ = 20455346167 is a prime.

It is a super-2 number, since 2×20522455031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20522454985 and 20522455003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522455021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318710 + ... + 377651.

It is an arithmetic number, because the mean of its divisors is an integer number (2763860778).

Almost surely, 2^20522455031 is an apocalyptic number.

20522455031 is a deficient number, since it is larger than the sum of its proper divisors (1588431193).

20522455031 is a wasteful number, since it uses less digits than its factorization.

20522455031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698641.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 20522455031 its reverse (13055422502), we get a palindrome (33577877533).

The spelling of 20522455031 in words is "twenty billion, five hundred twenty-two million, four hundred fifty-five thousand, thirty-one".