253515000 has 80 divisors (see below), whose sum is σ = 792027720. Its totient is φ = 67600000.

The previous prime is 253514981. The next prime is 253515019. The reversal of 253515000 is 515352.

It is an interprime number because it is at equal distance from previous prime (253514981) and next prime (253515019).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6550 + ... + 23450.

Almost surely, 2^253515000 is an apocalyptic number.

253515000 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 253515000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396013860).

253515000 is an abundant number, since it is smaller than the sum of its proper divisors (538512720).

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

253515000 is a wasteful number, since it uses less digits than its factorization.

253515000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16930 (or 16911 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 253515000 is about 15922.1543768423. The cubic root of 253515000 is about 632.8992100356.

The spelling of 253515000 in words is "two hundred fifty-three million, five hundred fifteen thousand".