25100042243 has 2 divisors, whose sum is σ = 25100042244. Its totient is φ = 25100042242.

The previous prime is 25100042237. The next prime is 25100042251. The reversal of 25100042243 is 34224000152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25100042243 - 2¹⁴ = 25100025859 is a prime.

It is a super-3 number, since 3×25100042243³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25100042263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550021121 + 12550021122.

It is an arithmetic number, because the mean of its divisors is an integer number (12550021122).

Almost surely, 2^25100042243 is an apocalyptic number.

25100042243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25100042243 is an equidigital number, since it uses as much as digits as its factorization.

25100042243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 25100042243 its reverse (34224000152), we get a palindrome (59324042395).

The spelling of 25100042243 in words is "twenty-five billion, one hundred million, forty-two thousand, two hundred forty-three".