253422665708247 has 72 divisors (see below), whose sum is σ = 442755265680000. Its totient is φ = 144430857040176.

The previous prime is 253422665708227. The next prime is 253422665708257. The reversal of 253422665708247 is 742807566224352.

253422665708247 is a `hidden beast` number, since 2 + 5 + 3 + 422 + 6 + 65 + 70 + 82 + 4 + 7 = 666.

It is not a de Polignac number, because 253422665708247 - 2¹⁴ = 253422665691863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253422665708227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 23565747 + ... + 32591252.

It is an arithmetic number, because the mean of its divisors is an integer number (6149378690000).

Almost surely, 2^{253422665708247} is an apocalyptic number.

253422665708247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

253422665708247 is a deficient number, since it is larger than the sum of its proper divisors (189332599971753).

253422665708247 is an equidigital number, since it uses as much as digits as its factorization.

253422665708247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56157407 (or 56157388 counting only the distinct ones).

The product of its (nonzero) digits is 270950400, while the sum is 63.

The spelling of 253422665708247 in words is "two hundred fifty-three trillion, four hundred twenty-two billion, six hundred sixty-five million, seven hundred eight thousand, two hundred forty-seven".