253277423221 has 8 divisors (see below), whose sum is σ = 265701427200. Its totient is φ = 241099439280.

The previous prime is 253277423173. The next prime is 253277423249. The reversal of 253277423221 is 122324772352.

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

It is a cyclic number.

It is not a de Polignac number, because 253277423221 - 2²¹ = 253275326069 is a prime.

It is a super-2 number, since 2×253277423221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253277423521) 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, 61502901 + ... + 61507018.

It is an arithmetic number, because the mean of its divisors is an integer number (33212678400).

Almost surely, 2^253277423221 is an apocalyptic number.

It is an amenable number.

253277423221 is a deficient number, since it is larger than the sum of its proper divisors (12424003979).

253277423221 is a wasteful number, since it uses less digits than its factorization.

253277423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123010019.

The product of its digits is 282240, while the sum is 40.

The spelling of 253277423221 in words is "two hundred fifty-three billion, two hundred seventy-seven million, four hundred twenty-three thousand, two hundred twenty-one".