253000000 has 196 divisors, whose sum is σ = 714365856. Its totient is φ = 88000000.

The previous prime is 252999893. The next prime is 253000037. The reversal of 253000000 is 352.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10999989 + ... + 11000011.

Almost surely, 2^253000000 is an apocalyptic number.

253000000 is a gapful number since it is divisible by the number (20) 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 253000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357182928).

253000000 is an abundant number, since it is smaller than the sum of its proper divisors (461365856).

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

253000000 is an frugal number, since it uses more digits than its factorization.

253000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 253000000 is about 15905.9737205869. The cubic root of 253000000 is about 632.4703543417.

Adding to 253000000 its reverse (352), we get a palindrome (253000352).

It can be divided in two parts, 25 and 3000000, that added together give a triangular number (3000025 = T₂₄₄₉).

The spelling of 253000000 in words is "two hundred fifty-three million", and thus it is an aban number.