33531042422 has 4 divisors (see below), whose sum is σ = 50296563636. Its totient is φ = 16765521210.

The previous prime is 33531042371. The next prime is 33531042451. The reversal of 33531042422 is 22424013533.

It is a happy number.

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

It is a super-2 number, since 2×33531042422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8382760604 + ... + 8382760607.

It is an arithmetic number, because the mean of its divisors is an integer number (12574140909).

Almost surely, 2^33531042422 is an apocalyptic number.

33531042422 is a deficient number, since it is larger than the sum of its proper divisors (16765521214).

33531042422 is a wasteful number, since it uses less digits than its factorization.

33531042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16765521213.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 33531042422 its reverse (22424013533), we get a palindrome (55955055955).

The spelling of 33531042422 in words is "thirty-three billion, five hundred thirty-one million, forty-two thousand, four hundred twenty-two".