25148437 has 2 divisors, whose sum is σ = 25148438. Its totient is φ = 25148436.

The previous prime is 25148401. The next prime is 25148441. The reversal of 25148437 is 73484152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20304036 + 4844401 = 4506^2 + 2201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25148437 is a prime.

It is equal to p_1574656 and since 25148437 and 1574656 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25148467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12574218 + 12574219.

It is an arithmetic number, because the mean of its divisors is an integer number (12574219).

Almost surely, 2^25148437 is an apocalyptic number.

It is an amenable number.

25148437 is a deficient number, since it is larger than the sum of its proper divisors (1).

25148437 is an equidigital number, since it uses as much as digits as its factorization.

25148437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 25148437 is about 5014.8217316272. The cubic root of 25148437 is about 292.9793421197.

The spelling of 25148437 in words is "twenty-five million, one hundred forty-eight thousand, four hundred thirty-seven".