76745025 has 54 divisors (see below), whose sum is σ = 159924102. Its totient is φ = 35078400.

The previous prime is 76744979. The next prime is 76745027. The reversal of 76745025 is 52054767.

It can be written as a sum of positive squares in 3 ways, for example, as 11716929 + 65028096 = 3423^2 + 8064^2 .

It is not a de Polignac number, because 76745025 - 2⁶ = 76744961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76745027) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 7545 + ... + 14505.

Almost surely, 2^76745025 is an apocalyptic number.

76745025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

76745025 is an abundant number, since it is smaller than the sum of its proper divisors (83179077).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76745025 is a wasteful number, since it uses less digits than its factorization.

76745025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991 (or 6976 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 76745025 is about 8760.4237911188. The cubic root of 76745025 is about 424.9619804513.

The spelling of 76745025 in words is "seventy-six million, seven hundred forty-five thousand, twenty-five".