253021104 has 120 divisors (see below), whose sum is σ = 844908720. Its totient is φ = 72285696.

The previous prime is 253021103. The next prime is 253021123. The reversal of 253021104 is 401120352.

253021104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (253021103) 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, 15192 + ... + 27144.

It is an arithmetic number, because the mean of its divisors is an integer number (7040906).

Almost surely, 2^253021104 is an apocalyptic number.

253021104 is a gapful number since it is divisible by the number (24) 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 253021104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422454360).

253021104 is an abundant number, since it is smaller than the sum of its proper divisors (591887616).

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

253021104 is a wasteful number, since it uses less digits than its factorization.

253021104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984 (or 11965 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 253021104 is about 15906.6371053092. The cubic root of 253021104 is about 632.4879396952.

Adding to 253021104 its reverse (401120352), we get a palindrome (654141456).

The spelling of 253021104 in words is "two hundred fifty-three million, twenty-one thousand, one hundred four".