253370276221 has 2 divisors, whose sum is σ = 253370276222. Its totient is φ = 253370276220.

The previous prime is 253370276213. The next prime is 253370276231. The reversal of 253370276221 is 122672073352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231173448025 + 22196828196 = 480805^2 + 148986^2 .

It is a cyclic number.

It is not a de Polignac number, because 253370276221 - 2³ = 253370276213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253370276231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126685138110 + 126685138111.

It is an arithmetic number, because the mean of its divisors is an integer number (126685138111).

Almost surely, 2^253370276221 is an apocalyptic number.

It is an amenable number.

253370276221 is a deficient number, since it is larger than the sum of its proper divisors (1).

253370276221 is an equidigital number, since it uses as much as digits as its factorization.

253370276221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 253370276221 in words is "two hundred fifty-three billion, three hundred seventy million, two hundred seventy-six thousand, two hundred twenty-one".