76545225 has 18 divisors (see below), whose sum is σ = 137101406. Its totient is φ = 40824000.

The previous prime is 76545191. The next prime is 76545229. The reversal of 76545225 is 52254567.

It can be written as a sum of positive squares in 3 ways, for example, as 227529 + 76317696 = 477^2 + 8736^2 .

It is not a de Polignac number, because 76545225 - 2¹¹ = 76543177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 76545225.

It is not an unprimeable number, because it can be changed into a prime (76545229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169876 + ... + 170325.

Almost surely, 2^76545225 is an apocalyptic number.

76545225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

76545225 is a deficient number, since it is larger than the sum of its proper divisors (60556181).

76545225 is a wasteful number, since it uses less digits than its factorization.

76545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340217 (or 340209 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 76545225 is about 8749.0128014537. The cubic root of 76545225 is about 424.5928742505.

The spelling of 76545225 in words is "seventy-six million, five hundred forty-five thousand, two hundred twenty-five".