25164341623 has 2 divisors, whose sum is σ = 25164341624. Its totient is φ = 25164341622.

The previous prime is 25164341611. The next prime is 25164341689. The reversal of 25164341623 is 32614346152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25164341623 - 2¹³ = 25164333431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25164341693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12582170811 + 12582170812.

It is an arithmetic number, because the mean of its divisors is an integer number (12582170812).

Almost surely, 2^25164341623 is an apocalyptic number.

25164341623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25164341623 is an equidigital number, since it uses as much as digits as its factorization.

25164341623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 37.

Adding to 25164341623 its reverse (32614346152), we get a palindrome (57778687775).

The spelling of 25164341623 in words is "twenty-five billion, one hundred sixty-four million, three hundred forty-one thousand, six hundred twenty-three".