25145773 has 2 divisors, whose sum is σ = 25145774. Its totient is φ = 25145772.

The previous prime is 25145767. The next prime is 25145807. The reversal of 25145773 is 37754152.

It is an a-pointer prime, because the next prime (25145807) can be obtained adding 25145773 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17288964 + 7856809 = 4158^2 + 2803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25145773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25145753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572886 + 12572887.

It is an arithmetic number, because the mean of its divisors is an integer number (12572887).

Almost surely, 2^25145773 is an apocalyptic number.

It is an amenable number.

25145773 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145773 is an equidigital number, since it uses as much as digits as its factorization.

25145773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 34.

The square root of 25145773 is about 5014.5561119605. The cubic root of 25145773 is about 292.9689965526.

The spelling of 25145773 in words is "twenty-five million, one hundred forty-five thousand, seven hundred seventy-three".