745806225 has 24 divisors (see below), whose sum is σ = 1266397120. Its totient is φ = 387011520.

The previous prime is 745806203. The next prime is 745806247. The reversal of 745806225 is 522608547.

It is an interprime number because it is at equal distance from previous prime (745806203) and next prime (745806247).

It is not a de Polignac number, because 745806225 - 2⁶ = 745806161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131605 + ... + 137154.

Almost surely, 2^745806225 is an apocalyptic number.

745806225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

745806225 is a deficient number, since it is larger than the sum of its proper divisors (520590895).

745806225 is a wasteful number, since it uses less digits than its factorization.

745806225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268809 (or 268804 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 745806225 is about 27309.4530337025. The cubic root of 745806225 is about 906.8636645869.

It can be divided in two parts, 745806 and 225, that added together give a triangular number (746031 = T₁₂₂₁).

The spelling of 745806225 in words is "seven hundred forty-five million, eight hundred six thousand, two hundred twenty-five".