25504151 has 2 divisors, whose sum is σ = 25504152. Its totient is φ = 25504150.

The previous prime is 25504067. The next prime is 25504163. The reversal of 25504151 is 15140552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25504151 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25504751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752075 + 12752076.

It is an arithmetic number, because the mean of its divisors is an integer number (12752076).

Almost surely, 2^25504151 is an apocalyptic number.

25504151 is a deficient number, since it is larger than the sum of its proper divisors (1).

25504151 is an equidigital number, since it uses as much as digits as its factorization.

25504151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 25504151 is about 5050.1634627010. The cubic root of 25504151 is about 294.3542361952.

The spelling of 25504151 in words is "twenty-five million, five hundred four thousand, one hundred fifty-one".