253053021 has 8 divisors (see below), whose sum is σ = 363358240. Its totient is φ = 155724912.

The previous prime is 253053019. The next prime is 253053089. The reversal of 253053021 is 120350352.

253053021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253053021 - 2¹ = 253053019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253053091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244231 + ... + 3244308.

It is an arithmetic number, because the mean of its divisors is an integer number (45419780).

Almost surely, 2^253053021 is an apocalyptic number.

It is an amenable number.

253053021 is a deficient number, since it is larger than the sum of its proper divisors (110305219).

253053021 is a wasteful number, since it uses less digits than its factorization.

253053021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488555.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 253053021 is about 15907.6403341288. The cubic root of 253053021 is about 632.5145333514.

The spelling of 253053021 in words is "two hundred fifty-three million, fifty-three thousand, twenty-one".