253433532 has 72 divisors (see below), whose sum is σ = 653159808. Its totient is φ = 76424480.

The previous prime is 253433519. The next prime is 253433539. The reversal of 253433532 is 235334352.

It is a self number, because there is not a number n which added to its sum of digits gives 253433532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253433539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503593 + ... + 504095.

It is an arithmetic number, because the mean of its divisors is an integer number (9071664).

Almost surely, 2^253433532 is an apocalyptic number.

253433532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253433532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326579904).

253433532 is an abundant number, since it is smaller than the sum of its proper divisors (399726276).

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

253433532 is a wasteful number, since it uses less digits than its factorization.

253433532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 866 counting only the distinct ones).

The product of its digits is 32400, while the sum is 30.

The square root of 253433532 is about 15919.5958491414. The cubic root of 253433532 is about 632.8314079240.

Adding to 253433532 its reverse (235334352), we get a palindrome (488767884).

The spelling of 253433532 in words is "two hundred fifty-three million, four hundred thirty-three thousand, five hundred thirty-two".