253221542326 has 16 divisors (see below), whose sum is σ = 382136423760. Its totient is φ = 125843487840.

The previous prime is 253221542303. The next prime is 253221542383. The reversal of 253221542326 is 623245122352.

It is a super-2 number, since 2×253221542326² (a number of 24 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 in 7 ways as a sum of consecutive naturals, for example, 488520 + ... + 863188.

It is an arithmetic number, because the mean of its divisors is an integer number (23883526485).

Almost surely, 2^253221542326 is an apocalyptic number.

253221542326 is a deficient number, since it is larger than the sum of its proper divisors (128914881434).

253221542326 is a wasteful number, since it uses less digits than its factorization.

253221542326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376719.

The product of its digits is 172800, while the sum is 37.

Adding to 253221542326 its reverse (623245122352), we get a palindrome (876466664678).

The spelling of 253221542326 in words is "two hundred fifty-three billion, two hundred twenty-one million, five hundred forty-two thousand, three hundred twenty-six".