25150997 has 2 divisors, whose sum is σ = 25150998. Its totient is φ = 25150996.

The previous prime is 25150981. The next prime is 25151053. The reversal of 25150997 is 79905152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14853316 + 10297681 = 3854^2 + 3209^2 .

It is a cyclic number.

It is not a de Polignac number, because 25150997 - 2⁴ = 25150981 is a prime.

It is a Chen prime.

It is equal to p_1574795 and since 25150997 and 1574795 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25150997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25150967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12575498 + 12575499.

It is an arithmetic number, because the mean of its divisors is an integer number (12575499).

Almost surely, 2^25150997 is an apocalyptic number.

It is an amenable number.

25150997 is a deficient number, since it is larger than the sum of its proper divisors (1).

25150997 is an equidigital number, since it uses as much as digits as its factorization.

25150997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 25150997 is about 5015.0769685021. The cubic root of 25150997 is about 292.9892831174.

The spelling of 25150997 in words is "twenty-five million, one hundred fifty thousand, nine hundred ninety-seven".