22031315553 has 16 divisors (see below), whose sum is σ = 31722848640. Its totient is φ = 13519958784.

The previous prime is 22031315513. The next prime is 22031315591. The reversal of 22031315553 is 35551313022.

It is not a de Polignac number, because 22031315553 - 2⁶ = 22031315489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22031315553.

It is not an unprimeable number, because it can be changed into a prime (22031315503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772776 + ... + 800777.

It is an arithmetic number, because the mean of its divisors is an integer number (1982678040).

Almost surely, 2^22031315553 is an apocalyptic number.

It is an amenable number.

22031315553 is a deficient number, since it is larger than the sum of its proper divisors (9691533087).

22031315553 is a wasteful number, since it uses less digits than its factorization.

22031315553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573928.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 22031315553 its reverse (35551313022), we get a palindrome (57582628575).

The spelling of 22031315553 in words is "twenty-two billion, thirty-one million, three hundred fifteen thousand, five hundred fifty-three".