253533534 has 8 divisors (see below), whose sum is σ = 507067080. Its totient is φ = 84511176.

The previous prime is 253533523. The next prime is 253533541. The reversal of 253533534 is 435335352.

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

253533534 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253533495 and 253533504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21127789 + ... + 21127800.

It is an arithmetic number, because the mean of its divisors is an integer number (63383385).

Almost surely, 2^253533534 is an apocalyptic number.

253533534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253533534 is a wasteful number, since it uses less digits than its factorization.

253533534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42255594.

The product of its digits is 81000, while the sum is 33.

The square root of 253533534 is about 15922.7363854333. The cubic root of 253533534 is about 632.9146330126.

Adding to 253533534 its reverse (435335352), we get a palindrome (688868886).

The spelling of 253533534 in words is "two hundred fifty-three million, five hundred thirty-three thousand, five hundred thirty-four".