45025681 has 2 divisors, whose sum is σ = 45025682. Its totient is φ = 45025680.

The previous prime is 45025637. The next prime is 45025693. The reversal of 45025681 is 18652054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35046400 + 9979281 = 5920^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 45025681 - 2⁷ = 45025553 is a prime.

It is a super-2 number, since 2×45025681² = 4054623899027522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45025621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22512840 + 22512841.

It is an arithmetic number, because the mean of its divisors is an integer number (22512841).

Almost surely, 2^45025681 is an apocalyptic number.

It is an amenable number.

45025681 is a deficient number, since it is larger than the sum of its proper divisors (1).

45025681 is an equidigital number, since it uses as much as digits as its factorization.

45025681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 45025681 is about 6710.1178082058. The cubic root of 45025681 is about 355.7569802312.

The spelling of 45025681 in words is "forty-five million, twenty-five thousand, six hundred eighty-one".