253219971 has 16 divisors (see below), whose sum is σ = 349949600. Its totient is φ = 162736128.

The previous prime is 253219951. The next prime is 253219979. The reversal of 253219971 is 179912352.

It is not a de Polignac number, because 253219971 - 2⁶ = 253219907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253219979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1635 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (21871850).

Almost surely, 2^253219971 is an apocalyptic number.

253219971 is a deficient number, since it is larger than the sum of its proper divisors (96729629).

253219971 is a wasteful number, since it uses less digits than its factorization.

253219971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078.

The product of its digits is 34020, while the sum is 39.

The square root of 253219971 is about 15912.8869473770. The cubic root of 253219971 is about 632.6536018186.

The spelling of 253219971 in words is "two hundred fifty-three million, two hundred nineteen thousand, nine hundred seventy-one".