25411400461 has 2 divisors, whose sum is σ = 25411400462. Its totient is φ = 25411400460.

The previous prime is 25411400419. The next prime is 25411400491. The reversal of 25411400461 is 16400411452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25088659236 + 322741225 = 158394^2 + 17965^2 .

It is a cyclic number.

It is not a de Polignac number, because 25411400461 - 2¹¹ = 25411398413 is a prime.

It is a super-2 number, since 2×25411400461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25411400491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12705700230 + 12705700231.

It is an arithmetic number, because the mean of its divisors is an integer number (12705700231).

Almost surely, 2^25411400461 is an apocalyptic number.

It is an amenable number.

25411400461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25411400461 is an equidigital number, since it uses as much as digits as its factorization.

25411400461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 25411400461 in words is "twenty-five billion, four hundred eleven million, four hundred thousand, four hundred sixty-one".