745130025 has 36 divisors (see below), whose sum is σ = 1347865740. Its totient is φ = 393456000.

The previous prime is 745130003. The next prime is 745130027. The reversal of 745130025 is 520031547.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15968016 + 729162009 = 3996^2 + 27003^2 .

It is not a de Polignac number, because 745130025 - 2⁵ = 745129993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745130027) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 6331 + ... + 39119.

It is an arithmetic number, because the mean of its divisors is an integer number (37440715).

Almost surely, 2^745130025 is an apocalyptic number.

745130025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

745130025 is a deficient number, since it is larger than the sum of its proper divisors (602735715).

745130025 is a wasteful number, since it uses less digits than its factorization.

745130025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32906 (or 32898 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 745130025 is about 27297.0698977015. The cubic root of 745130025 is about 906.5895064064.

The spelling of 745130025 in words is "seven hundred forty-five million, one hundred thirty thousand, twenty-five".