253058721 has 8 divisors (see below), whose sum is σ = 337874880. Its totient is φ = 168474192.

The previous prime is 253058717. The next prime is 253058759. The reversal of 253058721 is 127850352.

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

It is not a de Polignac number, because 253058721 - 2² = 253058717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253058621) 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, 55341 + ... + 59738.

It is an arithmetic number, because the mean of its divisors is an integer number (42234360).

Almost surely, 2^253058721 is an apocalyptic number.

It is an amenable number.

253058721 is a deficient number, since it is larger than the sum of its proper divisors (84816159).

253058721 is a wasteful number, since it uses less digits than its factorization.

253058721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115815.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 253058721 is about 15907.8194923126. The cubic root of 253058721 is about 632.5192824296.

The spelling of 253058721 in words is "two hundred fifty-three million, fifty-eight thousand, seven hundred twenty-one".