25193951 has 2 divisors, whose sum is σ = 25193952. Its totient is φ = 25193950.

The previous prime is 25193941. The next prime is 25193977. The reversal of 25193951 is 15939152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25193951 - 2¹⁰ = 25192927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25193911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12596975 + 12596976.

It is an arithmetic number, because the mean of its divisors is an integer number (12596976).

Almost surely, 2^25193951 is an apocalyptic number.

25193951 is a deficient number, since it is larger than the sum of its proper divisors (1).

25193951 is an equidigital number, since it uses as much as digits as its factorization.

25193951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 35.

The square root of 25193951 is about 5019.3576282230. The cubic root of 25193951 is about 293.1559816651.

The spelling of 25193951 in words is "twenty-five million, one hundred ninety-three thousand, nine hundred fifty-one".