253721373 has 8 divisors (see below), whose sum is σ = 339037248. Its totient is φ = 168776544.

The previous prime is 253721359. The next prime is 253721401. The reversal of 253721373 is 373127352.

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

It is not a de Polignac number, because 253721373 - 2⁴ = 253721357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253721323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91161 + ... + 93902.

It is an arithmetic number, because the mean of its divisors is an integer number (42379656).

Almost surely, 2^253721373 is an apocalyptic number.

It is an amenable number.

253721373 is a deficient number, since it is larger than the sum of its proper divisors (85315875).

253721373 is a wasteful number, since it uses less digits than its factorization.

253721373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185523.

The product of its digits is 26460, while the sum is 33.

The square root of 253721373 is about 15928.6337455539. The cubic root of 253721373 is about 633.0708999197.

The spelling of 253721373 in words is "two hundred fifty-three million, seven hundred twenty-one thousand, three hundred seventy-three".