253520326 has 4 divisors (see below), whose sum is σ = 380280492. Its totient is φ = 126760162.

The previous prime is 253520279. The next prime is 253520353. The reversal of 253520326 is 623025352.

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

It is a junction number, because it is equal to n+sod(n) for n = 253520294 and 253520303.

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, 63380080 + ... + 63380083.

It is an arithmetic number, because the mean of its divisors is an integer number (95070123).

Almost surely, 2^253520326 is an apocalyptic number.

253520326 is a deficient number, since it is larger than the sum of its proper divisors (126760166).

253520326 is a wasteful number, since it uses less digits than its factorization.

253520326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126760165.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 253520326 is about 15922.3216272000. The cubic root of 253520326 is about 632.9036421173.

Adding to 253520326 its reverse (623025352), we get a palindrome (876545678).

The spelling of 253520326 in words is "two hundred fifty-three million, five hundred twenty thousand, three hundred twenty-six".