2115253601 has 2 divisors, whose sum is σ = 2115253602. Its totient is φ = 2115253600.

The previous prime is 2115253571. The next prime is 2115253607. The reversal of 2115253601 is 1063525112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2051637025 + 63616576 = 45295^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115253601 - 2⁶ = 2115253537 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115253607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057626800 + 1057626801.

It is an arithmetic number, because the mean of its divisors is an integer number (1057626801).

Almost surely, 2^2115253601 is an apocalyptic number.

It is an amenable number.

2115253601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115253601 is an equidigital number, since it uses as much as digits as its factorization.

2115253601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2115253601 is about 45991.8862518162. The cubic root of 2115253601 is about 1283.6722346797.

Adding to 2115253601 its reverse (1063525112), we get a palindrome (3178778713).

The spelling of 2115253601 in words is "two billion, one hundred fifteen million, two hundred fifty-three thousand, six hundred one".