2430253261 has 2 divisors, whose sum is σ = 2430253262. Its totient is φ = 2430253260.

The previous prime is 2430253223. The next prime is 2430253289. The reversal of 2430253261 is 1623520342.

2430253261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2430253289) can be obtained adding 2430253261 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1901483236 + 528770025 = 43606^2 + 22995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2430253261 - 2²⁹ = 1893382349 is a prime.

It is a super-2 number, since 2×2430253261² = 11812261825202268242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2430253561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215126630 + 1215126631.

It is an arithmetic number, because the mean of its divisors is an integer number (1215126631).

Almost surely, 2^2430253261 is an apocalyptic number.

It is an amenable number.

2430253261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2430253261 is an equidigital number, since it uses as much as digits as its factorization.

2430253261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2430253261 is about 49297.5989374736. The cubic root of 2430253261 is about 1344.4681287252.

The spelling of 2430253261 in words is "two billion, four hundred thirty million, two hundred fifty-three thousand, two hundred sixty-one".