25025149 has 2 divisors, whose sum is σ = 25025150. Its totient is φ = 25025148.

The previous prime is 25025141. The next prime is 25025159. The reversal of 25025149 is 94152052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 3541924 = 4635^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 25025149 - 2³ = 25025141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25025141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512574 + 12512575.

It is an arithmetic number, because the mean of its divisors is an integer number (12512575).

Almost surely, 2^25025149 is an apocalyptic number.

It is an amenable number.

25025149 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025149 is an equidigital number, since it uses as much as digits as its factorization.

25025149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25025149 is about 5002.5142678457. The cubic root of 25025149 is about 292.4997891249.

The spelling of 25025149 in words is "twenty-five million, twenty-five thousand, one hundred forty-nine".