2253731657 has 2 divisors, whose sum is σ = 2253731658. Its totient is φ = 2253731656.

The previous prime is 2253731621. The next prime is 2253731687. The reversal of 2253731657 is 7561373522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2050640656 + 203091001 = 45284^2 + 14251^2 .

It is a cyclic number.

It is not a de Polignac number, because 2253731657 - 2²⁶ = 2186622793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2253731617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126865828 + 1126865829.

It is an arithmetic number, because the mean of its divisors is an integer number (1126865829).

Almost surely, 2^2253731657 is an apocalyptic number.

It is an amenable number.

2253731657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2253731657 is an equidigital number, since it uses as much as digits as its factorization.

2253731657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 41.

The square root of 2253731657 is about 47473.4837251281. The cubic root of 2253731657 is about 1311.0947197970.

The spelling of 2253731657 in words is "two billion, two hundred fifty-three million, seven hundred thirty-one thousand, six hundred fifty-seven".