2105257507 has 2 divisors, whose sum is σ = 2105257508. Its totient is φ = 2105257506.

The previous prime is 2105257499. The next prime is 2105257541. The reversal of 2105257507 is 7057525012.

It is an a-pointer prime, because the next prime (2105257541) can be obtained adding 2105257507 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105257507 - 2³ = 2105257499 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105251507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052628753 + 1052628754.

It is an arithmetic number, because the mean of its divisors is an integer number (1052628754).

Almost surely, 2^2105257507 is an apocalyptic number.

2105257507 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105257507 is an equidigital number, since it uses as much as digits as its factorization.

2105257507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 2105257507 is about 45883.0851948733. The cubic root of 2105257507 is about 1281.6469496158.

The spelling of 2105257507 in words is "two billion, one hundred five million, two hundred fifty-seven thousand, five hundred seven".